Question

A body is at rest attaining acceleration of 4ms-2.find its velocity at the end of half a meter

Answer 1

Answer:

2 m/s.

Explanation:

From the question we get that at the beginning the body is at rest so the initial velocity u of the body is zero. The final velocity v is to be found out. The acceleration is given as 4 m/s^2 and the distance S traveled is 0.5 meter.

So, we know that v^2=u^2+2aS , so on substituting the values from the question we will get that v^2=2*4*0.5 which on solving we will get v=2m/s.