A pendulum of mass m and length L is initially at rest at an angle 8. The pendulum then swings down and collides elastically with a stationary block of mass M. The block slides along the surface and eventually stops when it encounters a rough patch of length |Ad. 21 Assume that m = 1.7kg, L = 0.80m, 8 = 67, M = 2.8kg and Ad| = 0.55m. a) Calculate the speed of the block immediately after the elastic collision. b) What is the coefficient of kinetic friction of the rough patch?

A pendulum of mass m and length L is initially at rest at an angle 8. The pendulum then swings down and collides elastically with a stationary block of mass M. The block slides along the surface and eventually stops when it encounters a rough patch of length |Ad. 21 Assume that m = 1.7kg, L = 0.80m, 8 = 67, M = 2.8kg and Ad| = 0.55m. a) Calculate the speed of the block immediately after the elastic collision. b) What is the coefficient of kinetic friction of the rough patch?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter8: Conservation Of Energy

Section: Chapter Questions

Problem 9PQ

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