A man is pulling a 120 lb wooden box by a rope with a force of...

A man is pulling a 120 lb wooden box by a rope with a force of 80 lb along a wooden floor. The rope is 45 degrees from the horizontal. The coefficient of of dynamic friction between wood to wood surfaces is Uk=0.45. If the box initially starts from rest, what will the box's (a) acceleration,and (b) velocity after 8 sec? (c) max power and (d) average power. Make sure to have FDB and kinetic diagrams, and unit base vectors.

Expert Solution

samet mamat answered 2 years ago

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