Unit 1: Kinematics Observe the following displacement vs time graph and answer the questions below: Displacement vs Time B A C Displacement (m) 0 1 2 3 4 5 6 7 8 9 10 11 12 13 Time (s) 1. Determine the slope of the "A" segment. [ ] 2. For segment "A," determine the velocity of the object. [ ] 3. Examine segment "B." How would you describe the motion of the object during this interval? [ ] 4. In which segment is the object moving backwards? [ ] 5. In which segment or segments is the object maintaining a constant velocity? [ ] 6. Is there a segment in which this object is accelerating? [ ]Unit 2: 2-D Motion and Projectiles Givens: . The height from the ground is the same for Point B and Point H . The vertical velocity (vy ) at Point B is 30 m/s. . The horizontal velocity (vx) at Point A is 3 m/s. Use the following trajectory to answer the questions below: D C .G B. .H 1. What is the vertical velocity (v ) (giving both the magnitude and the direction) of the ball at Point H? How did you determine this? [ ] 2. Determine the vertical velocity (v ) of the ball at Point E. Be sure to explain how you determined this! [ ] 3. What is the horizontal velocity (v ) (giving both the magnitude and the direction) of the ball at Point H? How did you determine this? [ ] 4. What is the acceleration of the ball at Point B? How do you know? [ ]Givens: . The height from the ground is the same for Point B and Point H-this height is 15 meters. The mass of the ball is 0.2 kg . The vertical velocity (vy ) at Point B is 30 m/s. . The horizontal velocity (vx) at Point A is 3 m/s. Use the following trajectory to answer the questions below: D F C. .G Ba .H 30 m - 15 m 1. At Point E what is the ball's Gravitational Potential Energy (GPE)? [ ] 2. At Point ] which is just before the ball hits the ground with a height of 0 meters, what is the ball's kinetic energy? [ ] 3. At Point ], determine the velocity of the ball. [ ] 4. What is the total energy at Point E? [ ] 5. What is the total energy at Point J? [ ]Label the following free-body Diagram-to label, click on the image and choose "edit" from the bottom left menu. Then you can type in the text boxes. If the mass of the block is 10 kg, what is the weight? [ ] F F Double click to edit image F Based upon this force diagram, is this block at equilibrium ? How do you know? [ ] Observe the following 4 free-body diagrams: 300 N F 50 H 80 H 20 H 200 N 200 N Fnet - ON net - 900 N, up Fnet = 60 N, left Fnet = 30 N, right Using the diagrams and the net forces given below each one, determine the magnitude of the forces indicated by the arrows. (You will have 4 answers) Force B Force C Force D Force GUnit 4b: Universal Law of Gravitation You are working with Newton's Law of Universal Gravitation: Gm m, F = g 1. What would happen to the magnitude of the force if mass #1 is increased by a factor of 5x? [ ] 2. What would happen to the magnitude of the force if mass #2 is increased by a factor of 7x? [ ] 3. What would happen to the magnitude of the force if both masses are increased by a factor of 5x? [ ] 4. What would happen to the magnitude of the force if the distance between the two masses is increased by a factor of 9x? [ ] 5. What would happen to the magnitude of the force if the distance between the two masses is decreased by a factor of 9x? [ ] 6. What would happen to the magnitude of the force if all of the variables increased by a factor of 7x? [ ] 7. To sum up Newton's Law of Universal Gravitation, please fill in the blanks below. To type in the image, click on it and select "edit" from the bottom left corner. Then you can type in the text boxes with your answers. Newton's of gravitation tells us that the gravitational force is proportional to the of the masses and proportional to the of the between the masses. Double-click to add answers to blanks