Question

a body is moving with a velocity of 15m/s.if the motion is uniform,what will be its velocity after 10s?

Answer 1

Thanks for asking the question.
When a body moves with uniform velocity it means that it covers equal distance in equal intervals of time. So the velocity after ten seconds will remain the same that is 15 meters per second. It is because the distance covered in a specific interval of time is same for all intervals.
Hope it helps.

Answer 2

u=15m/s

v=15m/s

t=10sec

velocity=u+v/2

          =  15+15/2

             =30/2

             =15m/s  as, a body is in uniform motion .so,there is no change.