Question

A person Driving a car with a speed 72 km/h, suddenly sees a boy crossing the road. If the distance moved
by car, before the person applies brakes is 5 m, the reaction time of the person is
(1) 0.5 s
(2) 0.10 s
(3) 10 s
(4) 0.25 s
And please define reaction time​

Answer 1

Explanation:

option 4 according to me it is 0.25

Answer 2

Answer:d

Explanation:As 72 km/h is the speed

=20 m/s

So in 1 sec car travels 20m

In 0.25 sec car travels 5 m so

0.25 is the reaction time

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