A 2-kg collar which can slide on a frictionless vertical rod is acted upon by a

Question

A 2-kg collar which can slide on a frictionless vertical rod is acted upon by a force P which varies in magnitude as shown. Knowing that the collar is initially at rest, determine (a) the maximum velocity of the collar, (b) the time when the velocity is zero. A 3-oz ball is projected from a height of 4.8 ft with a horizontal velocity of 6 ft/s and bounces from a 14- oz smooth plate supported by springs. Knowing that the height of the rebound is 1.8 ft, determine (a) the velocity of the plate immediately after the impact, (b) the energy lost due to the impact.

Explanation / Answer

T8)A)Velocity keeps on increasing till t=2 seconds. so max vel at t=3sec.P=20tfor t

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