X 5 Student Home X Bb Pearson's Mylab & Mastering - 2 x MasteringPhysics: Chapter 03 Ho x *Homework Help - Q&A from Onl x + -> C A session.masteringphysics.com/myct/itemView?assignmentProblemID=166774801 FA . .. Part A If Vr = 7.70 units and Vy = -7.40 units, determine the magnitude of V. V = 10.7 units Submit Previous Answers Correct Part B Determine the direction of V. AEQ below the positive r-axis Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining 6:32 PM Type here to search O 26'F Cloudy ^ 9 0 6 0 (() 2/8/2022 E5 Student Home X Bb Pearson's Mylab & Mastering - 2 x MasteringPhysics: Chapter 03 Ho x *Homework Help - Q&A from Onl x + X > C A session.masteringphysics.com/myct/itemView?assignmentProblemID=1667748018offset=next FA . .. Constants Now assume that the stream flows east at 4.0 m/s. Draw the vectors Uws, representing the velocity of the stream, and Bys, representing the velocity of your rowboat relative to the stream bank. Be sure to draw both vectors. You are attempting to row across a stream in your rowboat as Draw Bys and Uws starting at the tail and tip of vyw respectively. The location, orientation and length of the vectors will be graded. Each shown in (Figure 1). Your paddling speed relative to still water vector's length is displayed in meters per second. is 3.0 m/s (i.e., if you were to paddle in water without a current, you would move with a speed of 3.0 m/s ). You head View Available Hint(s) off by rowing directly north, across the stream. + E Figure No elements selected -7 W E Uws Dys 6:33 PM Type here to search O 26'F Cloudy ^ 9 0 6 0 (() 2/8/2022 E5 Student Home X Bb Pearson's Mylab & Mastering - 2 x MasteringPhysics: Chapter 03 Ho x *Homework Help - Q&A from Onl x + X > C A session.masteringphysics.com/myct/itemView?assignmentProblemID=1667748018offset=next FA . .. Constants Previous Answers You are attempting to row across a stream in your rowboat as Submit shown in (Figure 1). Your paddling speed relative to still water is 3.0 m/s (i.e., if you were to paddle in water without a All attempts used; correct answer displayed current, you would move with a speed of 3.0 m/s ). You head off by rowing directly north, across the stream. Part C Figure Based on the vector diagram in Part B, determine how far downstream of your starting point you will finally reach the opposite shore if the stream is 6.0 meters wide. -7 View Available Hint(s) AEQ m Submit Provide Feedback Next > Type here to search O 26'F Cloudy ^ 9 0 6 0 (() 6:33 PM 2/8/20225 Student Home X Bb Pearson's MyLab & Mastering - 2 x MasteringPhysics: Chapter 03 Ho x *Homework Help - Q&A from Onl x + X > C A session.masteringphysics.com/myct/itemView?assignmentProblemID=1667748028offset=next FA . .. Constants Find vo. Use g = 9.81 m/s' for the magnitude of the acceleration due to gravity. Express the initial speed numerically in units of meters per second to three significant figures. (Figure 1) A softball is hit over a third baseman's head with some speed vo at an angle 0 above the horizontal. View Available Hint(s) Immediately after the ball is hit, the third baseman turns around and begins to run at a constant velocity V =7.00 m/s. He catches the ball t = 2.00 s later at vo = 18.8 m/s the same height at which it left the bat. The third baseman was originally standing L = 18.0 m from the location at Submit Previous Answers which the ball was hit. Figure C A session.masteringphysics.com/myct/itemView?assignmentProblemID=1667748038offset=next FA . .. Constants Part A (Figure 1)A swimmer wants to cross a river, from point A to point B, as shown in the figure. The distance d1 (from A to C) s 200 m, the distance d2 (from C to B) is 150 m, and the speed v, of the current in the river is 5 km/hour. Suppose To swim directly from A to B, what speed us, relative to the water, should the swimmer have? that the swimmer's velocity relative to the water makes an Express the swimmer's speed numerically, to three significant figures, in kilometers per hour. angle of 0 = 45 degrees with the line from A to C, as indicated in the figure. View Available Hint(s) Figure JAL AEd U.= km/hour Submit d Provide Feedback Next > V = 5 km/hour A Type here to search O 26'F Cloudy ^ 9 0 6 0 (() 6:34 PM 2/8/20225 Student Home X Bb Pearson's MyLab & Mastering - 2 x MasteringPhysics: Chapter 03 Ho x *Homework Help - Q&A from Onl x + X > C A session.masteringphysics.com/myct/itemView?assignmentProblemID=1667748058offset=next . .. Constants Part A Huck Finn walks at a speed of 0.60 m/s across his raft (that What is Huck's velocity (speed and direction) relative to the river bank? is, he walks perpendicular to the raft's motion relative to the Express your answer to three significant figures and include the appropriate units. shore). The raft is traveling down the Mississippi River at a speed of 1.69 m/s relative to the river bank (see the figure (Figure 1)). HA ? U= Value Units Figure Submit Request Answer Part B 40.60 m/s Express your answer to three significant figures and include the appropriate units. River current HA ? Value Units from the right horizontal direction Submit Request Answer O 26'F Cloudy ^ 9 0 6 0 (() 6:34 PM Type here to search 2/8/2022 E5 Student Home X Bb Pearson's MyLab & Mastering - 2 x MasteringPhysics: Chapter 03 Ho x *Homework Help - Q&A from Onl x + X > C A session.masteringphysics.com/myct/itemView?offset=next&assignmentProblemID=166774808 . .. g, is equal to 9.80 m/s* near the surface of the earth. Hence, the y component of its Constants velocity, vy, changes continuously. 3. An object undergoing projectile motion will undergo the horizontal and vertical motions described above from the instant it is Part E launched until the instant it strikes the ground again. Even though the horizontal and vertical motions can be treated Which of the following changes would increase the range of the ball shown in the original figure? independently, they are related by the fact that they occur for exactly the same amount Check all that apply. of time, namely the time t the projectile is in the air. O Increase vo above 30 m/s. Figure Type here to search O 28'F Partly cloudy ^ D O E D ( () 6:47 PM 2/8/20225 Student Home X Bb Pearson's MyLab & Mastering - 2 x MasteringPhysics: Chapter 03 Ho x *Homework Help - Q&A from Onl x + X > C A session.masteringphysics.com/myct/itemView?assignmentProblemID=1667748098offset=next . .. Constants Part A (Figure 1)A relief airplane is delivering a food package to a group of people stranded on a very small island. The island is too small for the plane to land on, and the only After a package is dropped from the plane, how long will it take for it to reach sea level from the time it is dropped? Assume that the package, like way to deliver the package is by dropping it. The airplane the plane, has an initial velocity of 452 km/ hour in the horizontal direction. flies horizontally with constant speed of 452 km/hour at Express your answer numerically in seconds. Neglect air resistance. an altitude of 725 m . The positive x and y directions are defined in the figure. For all parts, assume that the "island" View Available Hint(s) refers to the point at a distance D from the point at which Figure L. t : S Vo Submit h Part B If the package is to land right on the island, at what horizontal distance D from the plane to the island should the package be released? Express the distance numerically in meters. D View Available Hint(s) Type here to search O 28"F Partly cloudy ^ 9 0 6 0 /() 6:48 PM 2/8/2022 E5 Student Home X Bb Pearson's MyLab & Mastering - 2 x MasteringPhysics: Chapter 03 Ho x *Homework Help - Q&A from Onl x + X > C A session.masteringphysics.com/myct/itemView?assignmentProblemID=1667748098offset=next . .. Constants Submit (Figure 1)A relief airplane is delivering a food package to a group of people stranded on a very small island. The island is too small for the plane to land on, and the only way to deliver the package is by dropping it. The airplane Part C flies horizontally with constant speed of 452 km/hour at an altitude of 725 m . The positive x and y directions are defined in the figure. For all parts, assume that the "island" What is the speed up of the package when it hits the ground? refers to the point at a distance D from the point at which Express your answer numerically in meters per second. Figure View Available Hint(s) AEd ? Vo Up = m/s h Submit Part D Complete previous part(s) D Provide Feedback Next > Type here to search O 28'F Partly cloudy ^ 9 0 B D /() 6:48 PM 2/8/20225 Student Home X Bb Pearson's Mylab & Mastering - 2 x MasteringPhysics: Chapter 03 Ho x *Homework Help - Q&A from Onl x + X > C A session.masteringphysics.com/myct/itemView?assignmentProblemID=1667748108offset=next . .. Constants Draw the vector starting at the black dot. The location and orientation of the vectors will be graded. The length of the vectors will not be graded. V is a vector 24.8 units in magnitude and points at an angle of 23.4 . above the negative a axis. + E No elements selected V X Type here to search O 28'F Partly cloudy ^ 9 0 B D (() 6:52 PM 2/8/20225 Student Home X Bb Pearson's Mylab & Mastering - 2 x MasteringPhysics: Chapter 03 Ho x *Homework Help - Q&A from Onl x + X > C A session.masteringphysics.com/myct/itemView?assignmentProblemID=1667748108offset=next . .. Constants Calculate Vr and Vy V is a vector 24.8 units in magnitude and points at an angle Express your answers using three significant figures separated by commas. of 23.4 . above the negative a axis. AEd ? Vz , Vy= units Submit Request Answer Part C Use Vr and Vy to obtain (again) the magnitude of V. [Note: Part C is a good way to check if you've resolved your vector correctly.] Express your answer using three significant figures. AEd V = units 28'F Partly cloudy ^ 9 0 B D ( () 6:52 PM Type here to search O 2/8/2022 E5 Student Home X Bb Pearson's Mylab & Mastering - 2 x MasteringPhysics: Chapter 03 Ho x *Homework Help - Q&A from Onl x + X > C A session.masteringphysics.com/myct/itemView?assignmentProblemID=1667748108offset=next . .. Constants AEd ? V is a vector 24.8 units in magnitude and points at an angle V = units of 23.4 . above the negative a axis. Submit Request Answer Part D Use Vr and Vy to obtain (again) the direction of V. Express your answer using three significant figures. IVO AEQ A= above the - x axis Submit Request Answer Provide Feedback Next > 28'F Partly cloudy ^ 9 0 6 0 (() 6:52 PM Type here to search O 2/8/20225 Student Home X Bb Pearson's Mylab & Mastering - 2 x MasteringPhysics: Chapter 03 Ho x *Homework Help - Q&A from Onl x + X > C A session.masteringphysics.com/myct/itemView?assignmentProblemID=166774811&offset=next . .. Constants Part A A football is kicked at ground level with a speed of 18.6 m/s at an angle of 41.0 to the horizontal. How much later does it hit the ground? Express your answer using three significant figures and include the appropriate units. LA t = Value S Submit Request Answer