Question

1 A car is travelling along a straight road with a speed
of 67.5 miles/hour. Suddenly the driver has to apply
brakes so as to bring the car to rest in a distance
of 90 metres. The retardation produced by the
brakes is (1 mile = 1.61 kilometers)
(1) 2.5 m/s2
(2) 8 m/s2
(3) 5 m/s2
(4) 6 m/s2

Answer 1

Answer:

[4] is the right answer