Thank you in advance 8 A 25kg child sits on a rope swing. The rope has a length of L = 3m. Theswing is moved so that it starts with an angle of 0 = 20°, and is releasedfrom rest. Looking at the image, the y direction will remained aligned withthe string throughout its path. In this case, the acceleration in the ydirection is always equal to v²/L, where v is the speed of the child.a. As soon as the swing is released, there is no acceleration in the y direction becausethe initial speed is 0. Calculate the acceleration in the x direction. (Draw a free bodydiagram, etc.)b. When the swing is at its lowest point, the swing will be moving with a speed of v =1.88m/s. Calculate the force that the rope exerts on the swing when the swing is at itslowest point. (Draw another free body diagram, etc.) OANSWERS1 a. tf1.27s; b. řf = -6.60mj, tf = 4.00s; c. V; = –3.50mj, ā =%3D2 half as much3 they are all the same4| car5|a. 0.379m/s²-; b. 0.535m/s²÷; c. 4.17m/s²6 a. 9.8m/s²1; b. 54.2m/s; c. 5.53s; d. 11.1m;7 c. 2mm/ms?; d. (-2mm/ms)t + (1mm/ms²)ť²; e. 20.0N; f. (-2mm/ms) + (2mm/ms²)t; g.2mm/ms;8 a. 3.35m/s²; b. 275N;

Answered: Image /qna-images/answer/9f5ec033-ad24-4e47-bbb9-b477392939b1.jpg

8 A 25kg child sits on a rope swing. The rope has a length of L = 3m. The swing is moved so that it starts with an angle of 0 = 20°, and is released from rest. Looking at the image, the y direction will remained aligned with the string throughout its path. In this case, the acceleration in the y direction is always equal to v²/L, where v is the speed of the child. a. As soon as the swing is released, there is no acceleration in the y direction because the initial speed is 0. Calculate the acceleration in the a direction. (Draw a free body diagram, etc.) b. When the swing is at its lowest point, the swing will be moving with a speed of v = 1.88m/s. Calculate the force that the rope exerts on the swing when the swing is at its lowest point. (Draw another free body diagram, etc.)

8 A 25kg child sits on a rope swing. The rope has a length of L = 3m. The swing is moved so that it starts with an angle of 0 = 20°, and is released from rest. Looking at the image, the y direction will remained aligned with the string throughout its path. In this case, the acceleration in the y direction is always equal to v²/L, where v is the speed of the child. a. As soon as the swing is released, there is no acceleration in the y direction because the initial speed is 0. Calculate the acceleration in the a direction. (Draw a free body diagram, etc.) b. When the swing is at its lowest point, the swing will be moving with a speed of v = 1.88m/s. Calculate the force that the rope exerts on the swing when the swing is at its lowest point. (Draw another free body diagram, etc.)

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter7: Rotational Motion And The Law Of Gravity

Section: Chapter Questions

Problem 12CQ: A child is practicing for a BMX race. His speed remains constant as he goes counterclockwise around...

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