Question

A body moving with a velocity of 20m/s is brought to rest with uniform retardation in 4 seconds calulate the retardation and the distance travelled by the body before coming to rest
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Answer 1

Answer: -5m/s

Explanation:

v= u+at

0= 100m/s +20a

(0-100=-100) -100m/s=20a

a=-100/20= -5m/s