A motorboat of mass starts from rest

PHYSICS · Subjective · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

A motorboat of mass

600\,\text{kg}

starts from rest. Its engine delivers a constant power of

12\,\text{kW}

to the boat. Find the speed of the boat after

10\,\text{s}

, assuming all the engine power goes into increasing the boat’s kinetic energy.