Question

ENJOY 100 POINTS!!!!!!!!!! A car moves linearly with uniform retardation. If the car covers 40 m in the last 2 seconds of its motion, what is the velocity of the car at the beginning of the last second?
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Answer 1

v2 - u2 = 2aS
0 - u2 = 2 (-a) 40

u2 = 80a

a = u2/80

Now, in the last second, t = 1 sec
retardation a = -u2/80 m/s2
final velocity = 0

v = u + at
= u - u2/80 ×1

u = 80 m/s
Hope this helps you
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Answer 2

Thnx for points.

Here is your answer plzzz mark me as brainliest