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Question

If displacement of a particle is given as x=t32t2, then average acceleration from 0 to 2 seconds is

A
2 m/s2
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B
4 m/s2
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C
8 m/s2
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D
1 m/s2
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Solution

The correct option is A 2 m/s2
v=dxdt=3t24t
vt=2=4 m/s & vt=0=0 m/s
<a>=ΔVΔt=402=2 m/s2

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