

Car is initially at rest = u = 0 m/s
Uniform velocity = v = 5 m/s
Distance = 200m
Time taken is asked
Going by the laws of motion, v = u + at and s = ut + ½ at2
V = u + at
5 = 0 + at
a = 5/t ----------------------(1)
s = ut + ½ at2
200 = 0 + ½ (5/t)t2 ---------Substitute a = 5/t
200 = 5/2 t implies t = 80 seconds = 1 min 20 seconds
