Question

a bus decreases its speed from 72 km per hour to 54 km per hour in 5 second find the acceleration of the bus

Answer 1

your ans

given:-

initial velocity=72km/h------m/sec

u=20m/sec

final velocity=54km/h-------m/sec

v=15m/sec

acceleration =v-u/t

a=15-20/5

a=-5/5=-1

the bus is in retardation of 5m/sec2

a=15-

Answer 2

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