A pendulum of mass m and length L is initially at rest at an angle 0. 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|. MI M Assume that m = 1.7kg, L = 0.80m, 0 = 670, 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 0. 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|. MI M Assume that m = 1.7kg, L = 0.80m, 0 = 670, 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?
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Transcribed Image Text:A pendulum of mass m and length L is initially at rest at an angle 0. 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 |Adl.
MI
M
Assume that m = 1.7kg, L = 0.80m, 0 = 670, 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?
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