If a body starts from rest and travels 120m in the 8th seconds then acceleration is
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Answer :- 16 m/s^2
According to formula for displacement in nth second
Sn = u+ [a(2n-1)/2]
Herea
a is acceleration
Sn = 120m
time n = 8 sec
initial velocity u = 0 ( given)
put in above formula
120=0+[a(2×8-1)2]
240=15a
a=240/15
a=16m/s²
hope this will help you
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