A particle of mass 5 kg is released from point A and slides on a frictionless...

Question

Question

A particle of mass 5 kg is released from point A a

Answer 1

Answer #1

a) particle speed at point B = sqrt(2 * 9.8 * 1.8)

= 5.939 m/sec

particle speed at point C = sqrt(2 * (9.8 * 1.2 + 0.5 * 5.939 * 5.939) )

= 7.667 m/sec

b) Net work done = 1/2 * 5 * (7.667 * 7.667)

= 147 J

Answer 2

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