A particle of mass 0.50 kg moves along the x-axis so that its speed depends on…

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

Problem

A particle of mass 0.50 kg moves along the x-axis so that its speed depends on position according to

v=4\sqrt{x}

, where v is in m s⁻¹ and x in metres measured from the origin. Determine the instantaneous power being supplied to the particle when it is at

x=9.0\,\text{m}