A 1-lb all is attached to a 30” long cord as shown. The horizontal cord and...

Question

Question

A 1-lb all is attached to a 30” long cord as shown. The horizontal cord and ball are released from rest. When the cord reaches a vertical position, the ball strikes a 5-lb steel block initially at rest on a frictionless surface. If the coefficient of restitution between the ball and the block is 0.9, what is the speed of the ball before and after impact? What is the speed of the block just after impact?

Answer 1

Answer #1

5 tb Stadt 2 Dashum vero Mas IIb = 0.4555 % VADO (at rest) me = 596 soin = .26796 ng The State 1 so we know that first ball i

Answer 2

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