Question

a scooterist applies brakes and brings his scooter to rest in 1.5s .If the retardation of the brakes is 5 m/s2, calculate the initial velocity of the scooter in​

Answer 1

Answer:

Explanation:

Initially velocity of the scooter =u=?

final velocity of the scooter = v=0

Time = t=1.5s

Retardation = -a = 5m/s

Acceleration = a = -5m/s ^2

V= u+at

0=u+(-5)×1.5

Initial velocity = u = 7.5m/s

Initial velocity in Km/h = 7.5×18/5

=27km/h