Question

The displacement of a particle moving in one dimension under the action of a constant force is related to the time t by the equation t = square root of x + 3, where x is in metre and t is in second. Find the displacement of the particle when its velocity is zero.

Answer 1

For the velocity to be zero,

2t - 6 = 0 ⇒ t = 3 sec

The displacement is x = 9 + 9 - 6 x 3 = 0