Question

A body starts from rest and moves along a straight line path with uniform acceleration . What is the ratio of velocities at t =1s and t=2s ?

Answer 1

v=u+at

at t=1s, v=0+1*a = a

at t=2s, v=0+2*a=2a

taking the ratio between them ,

a/2a= 1/2

ratio is 1:2