Question

A particle starts from rest from origin and moves along a straight line according to the law is s=u were s is displacement and u is constant find acc in time t

Answer 1

Velocity is differential change in displacement with respect to time

v=(dx)/dt

Now,

x=s=u

v= (ds)/dt

But s is constant,

So,

v=0

a=(dv)/dt

a=0

So,

The acceleration is zero

Answer 2

Answer: The acceleration in time will be zero.

Given data states that a body starts from rest that is initial velocity is zero and moves along the x-axis with s displacement which is given by s = u where u is constant therefore the final velocity be zero again due to the differentiation of displacement with time gives velocity and differentiation of constant is zero.

Thereby acceleration is the differentiation of velocity with time and will hence be zero.