A winch pulls a 50

PHYSICS · Single correct · CBSE · Physics · Work and Energy · Work and Energy

Problem

A winch pulls a 50\,\text{kg} crate across a frictionless horizontal surface by delivering constant power of 200\,\text{W} for 5.0\,\text{s}. If the crate starts from rest, what is its speed at t = 5.0\,\text{s}? (a) 8.9 m/s8.9\,\text{m/s} (b) 20 m/s20\,\text{m/s} (c) 6.3 m/s6.3\,\text{m/s} (d) 4.5 m/s4.5\,\text{m/s}

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