Question

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

(A)

1

2

t

(B)

t

(C)

3

2

t

(D)

2
​

Answer 1

Explanation:

In our question a body is initially at rest that means initial velocity is zero (the body is not moving at all). Here, mass and acceleration both are constant. Therefore Power is directly proportional to time.