Q.

A body travels a distance of 20m in the 7th second and 24 m in 9th second. How much distance shall it travel in the 15th second?

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a

10m

b

16m

c

24m

d

36m

answer is D.

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Detailed Solution

S9−S72=a=42=2m/s2s15=S9+6a=24+6×2=36m
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