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A car moves linearly with uniform retardation. If the car covers 40 m in last 2 seconds of its motion, what is the velocity of the car at the beginning of the last second?

A car moves linearly with uniform retardation. If the car covers 40 m in last 2 seconds of its motion, what is the velocity of the car at the beginning of the last second?

Grade:9

1 Answers

Arun
25763 Points
4 years ago
Sn = u + (1/2)*f*(2n-1)
V = u + ft
Find v after n seconds and relate it to the sum of n anf n-1 seconds.
Hence you willbgetvthe speed as 40 m/sec.
Regards
Arun (askIITians forum expert)

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