An 8 lbm box is moving around the circle of radius ra 2 ft

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Reference no: EM13610451

An 8 lbm box is moving around the circle of radius rA = 2 ft with a speed of vA = 5 ft/s while connected to the end of the rope. Just after (not before) the box passes point A, the rope is pulled with a constant inward speed of 4 ft/s.

a) Calculate the total velocity of the box at the instant it reaches point B.

b) Calculate the amount of work done from A to B assuming friction is negligible.

Reference no: EM13610451

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