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Questions  

An object  falls freely from rest travels for 10 sec ,the distance covered  in last second is g=10m/s2

a
105m
b
85m
c
90m
d
95m

detailed solution

Correct option is D

10th sec is last second displacement in last second=Sn=U+gn−12  ; here initial velocity=U=0Sn=0+1010−12⇒Sn=10192Sn=95m=displacement in last second

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