A pendulum of mass m and length is initially at rest at an angle 9. The pendulumthen swings down and collides elastically with a stationary block of mass M. Theblock slides along the surface and eventually stops when it encounters a roughpatch of length |Ad.Assume that m = 1.7kg, L = 0.80m, 0 = 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?

Given : pendulum with Bob mass m and Length L and a block of mass M rest on surface . There is also…

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