Question

A trolley while going down a inclined plane has an acceleration of 2m/s2 . what will be its velocity in 3 seconds after the start ?

Answer 1

u = 0 
t = 3 seconds 

v = ?

a = 2 m/s²

v = u + at 

v = at 

v = 2 x 3 

= 6 m/s

Answer 2

the answer is a = 6m/ s