I need help here please (b) What is the tension in the rod when the ball passes through B?Tension%3D(c) A little grit is placed on the pivot to increase the friction there.Then the ball just barely reaches C when launched from A withthe same speed as before. What is the decrease in the mechanicalenergy during this motion?AEmech%3D(d) What is the decrease in the mechanical energy by thetime the ball finally comes to rest at B after several oscillations?AEmech PivotpointRodBA massless rigid rod of length L has a ball of mass m attached toone end. The other end is pivoted in such a way that the ball willmove in a vertical circle. First, assume that there is no friction atthe pivot. The system is launched downward from the horizontalposition A with initial speed vo. The ball just barely reaches pointD and then stops.NOTE: Express your answers in terms of the L, m, and g.(a) Determine an expression for vo.(b) What is the tension in the rod when the ball passes through B?

Answered: Image /qna-images/answer/a1fa2e3f-f6a9-45b2-8d31-cc97cde552ab.jpg

D Pivot point A Rod A massless rigid rod of length L has a ball of mass m attached to one end. The other end is pivoted in such a way that the ball will move in a vertical circle. First, assume that there is no friction at the pivot. The system is launched downward from the horizontal position A with initial speed vo. The ball just barely reaches point D and then stops. NOTE: Express your answers in terms of the L, m, and g.

D Pivot point A Rod A massless rigid rod of length L has a ball of mass m attached to one end. The other end is pivoted in such a way that the ball will move in a vertical circle. First, assume that there is no friction at the pivot. The system is launched downward from the horizontal position A with initial speed vo. The ball just barely reaches point D and then stops. NOTE: Express your answers in terms of the L, m, and g.

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter10: Fixed-axis Rotation

Section: Chapter Questions

Problem 84P: You have a grindstone (a disk) that is 90.0 kg, has a 0.340-m radius, and is turning at 90.0 rpm,...

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