A car starts from rest and

accelerates uniformly to a speed of 72 km. p.h. over

a distance of 500 m. Calculate the acceleration and

the time taken to attain the speed.

If a further acceleration raises the speed to

90 km. p.h. in 10 seconds, find this acceleration and

the further distance moved. The brakes are now

applied to bring the car to rest under uniform

retardation in 5 seconds. Find the distance travelled

during braking.

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