If a body starts from rest, the time in which it covers a particular displacement with uniform acceleration is :

Starting from the rest , a body P travels with a uniform acceleration of 4m/s^2 and starting from rest from the same point 4s later , a body Q travels with a uniform acceleration of 16m/s_2 in the same direction as P . Find when and where they meet .

A body starts from rest and then moves with uniform acceleration. Then.

A body starts from rest and then moves with uniform acceleration. Then.

A body starts from rest and moves for n seconds with uniform acceleration a, its velocity after n seconds is v. The displacement of the body in last 3 seconds is :