Question

a person driving a car with a speed 72 kilometre per hour suddenly sees a boy crossing the road if the distance moved by car before the person applies brakes 5 metre the reaction time of the person is​

Answer 1

Answer:

0.25 second

Explanation:

car speed = 72 km/hr (or) 20 m/s

car moved before applyed brake = 5 m

reaction time = 5/20 sec

= 0.25 sec