Question

A speeding car is travelling at a constant speed of 44 m/s when it passes a stationary police car.
The police car immediately accelerates uniformly from rest at a rate of 2.2 m/s2. If the car does
not slow down and the police officer maintains the rate of acceleration, how long will it take the police car to catch the speeding car?​

Answer 1

Answer:

40 sec,i hope this helps you friend!

Explanation:

let the time after which the poilce car catches the car is t sec

now the distance travelled by the car in t sec =S=44t

hence the police can catch the car only when it travels the same distance

which would mean

S=ut+at²/2         (the u=0 for police car)

44t=0+2.2*t²/2

44t=2.2t²/2

44=t*1.1

t=40sec