C webassign.net/web/Student/Assignment-Responses/submit?dep=32065234&tags=autosave#question4213123_11 6. [-/1 Points] DETAILS SERPSE10 4.AMT.002. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER This question has several parts that must be completed sequentially. If you skip a part of the question, you will not receive any points for the skipped part, and you will not be able to come back to the skipped part. Analysis Model Tutorial In a local bar, a customer slides an empty beer mug down the counter for a refill. The height of the counter is h = 1.30 m. The mug slides off the counter and strikes the floor d = 1.30 m from the base of the counter. (a) With what velocity did the mug leave the counter? (b) What was the direction of the mug's velocity just before it hit the floor? Part 1 of 10 - Conceptualize: Once the mug leaves the counter, it becomes a projectile. We ignore air resistance because the mug is much denser than the surrounding air. The diagram shows an estimate of what the trajectory of the mug might look like. From the coordinate system in the diagram, we see that the origin is the point at which the mug leaves the counter. Based on our everyday experiences and the description of the problem, a reasonable speed of the mug would be a few m/s. It will hit the floor at an angle between 0 and 90. ty Part 2 of 10 - Categorize: Now that we understand the problem and have made estimates of our expected results, we identify the analysis model(s) needed to solve the problem. (1) Which of the following choices represents the best analysis model to use to describe the horizontal component of the motion of the beer mug? O particle under constant velocity particle under constant acceleration O particle in uniform circular motion O none of the above Q Search D 9 x 3:20 PM 2023-09-22gage Lea C webassign.net/web/Student/Assignment-Responses/submit?dep=32065234&tags=autosave#question4213123_11 Once the mug leaves the counter, it becomes a projectile. We ignore air resistance because the mug is much denser than the surrounding air. The diagram shows an estimate of what the trajectory of the mug might look like. From the coordinate system in the diagram, we see that the origin is the point at which the mug leaves the counter. Based on our everyday experiences and the description of the problem, a reasonable speed of the mug would be a few m/s. It will hit the floor at an angle between 0 and 90. Part 2 of 10 - Categorize: Now that we understand the problem and have made estimates of our expected results, we identify the analysis model(s) needed to solve the problem. (1) Which of the following choices represents the best analysis model to use to describe the horizontal component of the motion of the beer mug? O particle under constant velocity O particle under constant acceleration O particle in uniform circular motion none of the above (2) Which of the following choices represents the best analysis model to use to describe the vertical component of the motion of the beer mug? O particle under constant velocity O particle under constant acceleration O particle in uniform circular motion none of the above Submit Skip Need Help? Read It QSearch X N 3:20 PM 1 D 2023-09-22Learning VA PHYS 204 - Chapter 4 Enhanced x Le econcordia.com/my2/Assessmer x + V X webassign.net/web/Student/Assignment-Responses/submit?dep=32065234&tags=autosave#question4213123_11 LEXA IA : Need Help? Read It Master It Submit Answer [-/1 Points] DETAILS SERPSE 10 4.AMT.003. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER This question has several parts that must be completed sequentially. If you skip a part of the question, you will not receive any points for the skipped part, and you will not be able to come back to the skipped part. Analysis Model Tutorial A placekicker must kick a football from a point 36.0 m (about 40 yards) from the goal. Half the crowd hopes the ball will clear the crossbar, which is 3.05 m high. When kicked, the ball leaves the ground with a speed of 20.6 m/s at an angle of 47.0 to the horizontal. (a) By how much does the ball clear or fall short of clearing the crossbar? (b) Does the ball approach the crossbar while still rising or while falling? Part 1 of 9 - Conceptualize: Imagine the scene based on your observations of American football games. If you are familiar with such games, you may realize that 40 yards is a relatively long field goal kick so we might expect the ball to be falling from its highest point in part (b). There is no way we can predict an answer to part (a) based on our experience because our experience doesn't involve the numerical values given in the problem. We would expect the vertical position of the ball when it arrives at the goal post to be a few meters. Even though air resistance can have an effect on the motion of a football, we will ignore air resistance so that we can use our analysis models to solve the problem. Part 2 of 9 - Categorize: Now that we have conceptualized the problem and have made a couple of predictions, we identify the analysis model that is needed to solve the problem. (1) Which one of the following represents the best analysis model to use to describe the horizontal component of the motion of the football? particle in uniform circular motion O particle under constant velocity O particle under constant acceleration none of the above (2) Which one of the following represents the best analysis model to use to describe the vertical component of the motion of the football? O particle in uniform circular motion D 9 X 3:21 PM1 Q Search IN 2023-09-22ming VA PHYS 204 - Chapter 4 Enhanced x Le econcordia.com/my2/Assessmer x + X webassign.net/web/Student/Assignment-Responses/submit?dep=32065234&tags=autosave#question4213123_11 pped part. Analysis Model Tutorial A placekicker must kick a football from a point 36.0 m (about 40 yards) from the goal. Half the crowd hopes the ball will clear the crossbar, which is 3.05 m high. When kicked, the ball leaves the ground with a speed of 20.6 m/s at an angle of 47.0 to the horizontal. (a) By how much does the ball dear or fall short of clearing the crossbar? (b) Does the ball approach the crossbar while still rising or while falling? Part 1 of 9 - Conceptualize: Imagine the scene based on your observations of American football games. If you are familiar with such games, you may realize that 40 yards is a relatively long field goal kick so we might expect the ball to be falling from its highest point in part (b). There is no way we can predict an answer to part (a) based on our experience because our experience doesn't involve the numerical values given in the problem. We would expect the vertical position of the ball when it arrives at the goal post to be a few meters. Even though air resistance can have an effect on the motion of a football, we will ignore air resistance so that we can use our analysis models to solve the problem. Part 2 of 9 - Categorize: Now that we have conceptualized the problem and have made a couple of predictions, we identify the analysis model that is needed to solve the problem. (1) Which one of the following represents the best analysis model to use to describe the horizontal component of the motion of the football? O particle in uniform circular motion particle under constant velocity particle under constant acceleration none of the above (2) Which one of the following represents the best analysis model to use to describe the vertical component of the motion of the football? O particle in uniform circular motion O particle under constant velocity O particle under constant acceleration none of the above Submit Skip 3:21 PM Q Search 2023-09-22Cengage Learning x VA PHYS 204 - Chapter 4 Enhanced x econcordia.com/my2/Assessmel x X - C webassign.net/web/Student/Assignment-Responses/submit? dep=32065234&tags=autosave#question4213123_11 EXAIA 4. [-/1 Points] DETAILS SERPSE10 4.AMT.001. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER This question has several parts that must be completed sequentially. If you skip a part of the question, you will not receive any points for the skipped part, and you will not be able to come back to the skipped part. Analysis Model Tutorial A fish swimming in a horizontal plane has velocity v, = (4.001 + 1.00j) m/s at a point in the ocean where the position relative to a certain rock is r, = (9.001 - 3.00j) m. After the fish swims with constant acceler for 19.0 s, its velocity is v = (19.01 - 6.00j) m/s. (a) What are the components of the acceleration of the fish? (b) What is the direction of its acceleration with respect to unit vector i? (c) If the fish maintains constant acceleration, where is it at t = 26.0 s, and in what direction is it moving? Part 1 of 9 - Conceptualize: We see that we are given the initial conditions for the motion of the fish at t = 0: its initial position and its initial velocity. It swims for 19.0 s, and we now know the final velocity of the fish at t = 19.0 s. From this information, we want to find its acceleration and then some information about the fish at a later time of 26.0 s. We expect the acceleration to be something reasonable for a fish, that is, much less than the acceleration due to gravity. We also expect the acceleration to have components in both the x and y directions. (1) Which of the graphs below is the best choice to represent the initial conditions in this problem, showing the correct initial position vector for the fish (in black) and the correct initial velocity vector for the fish (in red)? ( b ) (0) (d) A choice (a) above choice (b) above choice (c) above O choice (d) above O none of the above Search O V W X 3:21 PM 1 2023-09-22JU WII nut RECEIVE any PUITIES TOI TTE SRIPPCu part, and you w skipped part. Prelecture Exploration: Position and Time in Projectile Motion Kato and Abel are tennis partners, and are also in the same physics class. They are playing around with the tennis ball machine, which launches tennis balls at an initial speed of 30 m/s. Kat wonders how high and how far the tennis ball can go, and the pair decide to perform several experiments to find out. This simulation shows a projectile launched from the origin. The initial speed of the projectile is 30 m/s. Kato and Abel can use the slider to set the launch angle or enter an angle value by clic inside the degrees box and then clicking "fire" to set the projectile in motion. They can move the mouse pointer to see readouts of the x- and y-coordinates for any point on the curve. They ca click "pause" to stop the simulation at any point and "clear" to remove traces of the projectile paths. Note that in this simulation, air resistance is ignored. y (m) 75 vi =30 m/s 25 o x (m) 25 50 75 100 125 Launch Angle 50 degrees - 90 - 75 - 60 - 45 - 30 - 15 - 0 Time = 0.00 s fire pause clear Click here to open the simulation in a new window. Part 1 of 9 - Maximum Height Late runs the nitchin al different anal nd Abel watch carefully to that angle ro catact height What angle do they find? Q Search O W 9 X N 3:21 2023-09-22Cengage Learning X VA PHYS 204 - Chapter 4 Enhanced x e econcordia.com/my2/Assessme x + C webassign.net/web/Student/Assignment-Responses/submit?dep=32065234&tags=autosave#question4213123_11 * Part 2 of 9 - Maximum Height The friends find that a 90 launch angle produces the greatest tennis ball height for a given launch speed. Kato asks Abel why this is so. Which of Abel's responses is correct? O "For this angle, the vertical component of velocity is zero, so the initial velocity is purely in the horizontal direction." "For this 90 angle, the horizontal component of velocity is zero, so the initial velocity is completely in the vertical direction, resulting in greatest height." "The horizontal component of velocity determines the greatest height, and when the launch angle is 90, the horizontal component is maximum. That is why it is 90." "When the launch angle is 90, no component of the velocity is moving against the gravitational acceleration; therefore, the height is greatest here." Abel is correct. As Abel recognized, the initial velocity is entirely in the vertical direction for a 90 launch, so the height of the tennis ball is greatest for a launch angle of 90. Part 3 of 9 - Maximum Height Abel challenges Kato to use the equation for the time for any projectile to reach maximum height in the absence of air resistance, given by ty max = = Vi sin 0; , and the kinematic equation g yf = y; + v;(sin 0;)t - -gt, to determine the maximum height, h, of the tennis ball, given the initial launch angle and speed. Which of Kato's attempts is correct? O Kato tries substituting 2ty, max for t, 0 for y;, and h for ya, and gets h = Visin2 0; O Kato tries substituting ty, max for t, 0 for y;, and h for ya and gets h = Vi sin2 0, 2g O Kato tries substituting ty, max for t, 0 for y;, and h for ya and gets h = Vi sin- 0; g O Kato says that it is not at all possible to determine the maximum height of a tennis ball using these equations. Submit Skip (you cannot come back) Need Help? Read It Submit Answer 2. [0.08/1 Points] DETAILS PREVIOUS ANSWERS SERPSE10 4.PLE.002. MY NOTES ASK YOUR TEACHER PRACTICE ANOTH completed conuentially If you ckin a part of the question you will not receive any points for the skinned n ck to the Search P W N 2023