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# A body is initially at rest. It undergoes one-dimensional motion with constant acceleration. The power delivered to it at time t is proportional to (i) t1/2 (ii) t (iii) t3/2 (iv) t2

JEE Main Maths, Physics With 12 years exp.

Power=FVCosA=ma.(u+at)Cos0=ma.(0+at).1=ma^2.t. Which is propotionalp to t. So correct answer (ii) t.

Tutor

Power =Energy /Time ,therefore it is 't'(ii)

Tutor

t^2

2

Tutor / Educator / Entrepreneur

Power =Energy per unit time , so thatanswer will be t (Option ii)

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