Question

50. A motor car is uniformaly retarded and brought to rest from a speed of 108 km/h in 15 s.
Find its acceleration.

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Answer 1

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Answer 2

Explanation:

u=108 km/h so change in m/s

u=108×1000/3600=30m/s

so v=0 and acc= v-v°/t

therefore acceleration (acc)=0-30/15

=-30/15=-2 and

please Mark as brailyst