A child of mass me = 44 kg is in a roller coaster car that travels in a loop of radius R = 7 m. At point A the speed of the car is VA= 10 m/s, and at point B, the speed is vg 10.4 m/s. Assume the child is not holding on and does not wear a seat belt. Assume all quantities are correct to 3 significant figures. B A 30° l.a) Draw a FBD Let NA be the force of the roller coaster car on the child. In your notebook, draw a free body diagram of the child at point A. Draw the vector for the centripetal acceleration at A in the box. A Let NÅ be the force of the roller coaster car on the child. In your notebook, draw a free body diagram of the child at point A. Draw the vector for the centripetal acceleration at A in the box. radial direction p 0 (1.b) Set-up Newton's Second Law along the radial direction at point A in terms of the normal force at A, NA, and the weight of the child, mog, SYMBOLICALLY Note: The radial direction at A (direction along the radius and towards the center is positive) is shown in the figure above. ZF, F+NA-mg=mcac Do not forget the subscripts "c" for the child's mass and the susbcript "A" for the normal when answering the question above.

A child of mass me = 44 kg is in a roller coaster car that travels in a loop of radius R = 7 m. At point A the speed of the car is VA= 10 m/s, and at point B, the speed is vg 10.4 m/s. Assume the child is not holding on and does not wear a seat belt. Assume all quantities are correct to 3 significant figures. B A 30° l.a) Draw a FBD Let NA be the force of the roller coaster car on the child. In your notebook, draw a free body diagram of the child at point A. Draw the vector for the centripetal acceleration at A in the box. A Let NÅ be the force of the roller coaster car on the child. In your notebook, draw a free body diagram of the child at point A. Draw the vector for the centripetal acceleration at A in the box. radial direction p 0 (1.b) Set-up Newton's Second Law along the radial direction at point A in terms of the normal force at A, NA, and the weight of the child, mog, SYMBOLICALLY Note: The radial direction at A (direction along the radius and towards the center is positive) is shown in the figure above. ZF, F+NA-mg=mcac Do not forget the subscripts "c" for the child's mass and the susbcript "A" for the normal when answering the question above.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter2: Vectors

Section: Chapter Questions

Problem 51P: In an attempt to escape a desert island, a castaway builds a raft and sets out to sea. The wind...

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