a car starts from rest and has a constant acceleration of 2.5 m/s^2. if it travels 25m how long will it take to complete the motion

Answer 1

4rm eqns of motion
s=ut + 1/2at^2
since u =0
s=1/2at^2
25=0.5*2.5 *t^2
t^2=25/1.25
t^2=20secs^2
t=4.5secs