Question

21. A body is moving with variable acceleration (a)
along a straight line. The average acceleration of
body in time interval t, to tą is
aſtą +t]
aſta - t]
(1)
(2)
2
2
t2
a dt
(3) 4
t₂ +t,
ſa dt
(4) 4
t-t​

Answer 1

Explanation:

A particle starts from position x=0 at time t=0 with velocity v=(t2+4t) along the x-axis. the magnitude of average acceleration during the time interval t=1s to t=2s is (where v is in m/s and t in s.

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