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Question

A body started with velocity of 12 m/s and moving with an acceleration of 2 m/s2. The distance travelled by the body in the 8th second is

A
27 m
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B
20 m
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C
17 m
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D
24 m
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Solution

The correct option is A 27 m
Given,
u=12 m/s,a=2 m/s2,n=8
As we know that the distance travelled in nth second is given by
Sn=u+12a(2n1)
S6th=12+12×2(2×81)=12+5
S6th=27 m

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