Question

A particle start with a velocity of 5 ms^-1 and moves with a uniform acceleration of 2.5 m s ^ -2 its velocity after 4s is

Answer 1

ans is 15 m /s...........

Answer 2

u=5
v=?
a=2.5
t=4
v=u+at
= 5+2.5*4
= 15m/s