Question:medium

A body of mass 0.5 kg is supplied with a power 'P' (in watt) which varies with time 't' (in second) as $P=3t^2+3$. If the velocity of the body at time t=0 is zero, then the velocity of the body at time t=3s is

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The Work-Energy Theorem provides a powerful link between dynamics (forces and power) and kinematics (energy and velocity). When power is a function of time, integrate the power to find the total work done, which then gives the change in kinetic energy.

Updated On: Mar 30, 2026

12 ms$^{-1}$
24 ms$^{-1}$
18 ms$^{-1}$
36 ms$^{-1}$

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The Correct Option is A

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