The displacement of a body of mass 2 kg varies with time.t. as S =t^(2) + 2t, where S is in metres and .t.is in seconds. The work done by all the foces acting on the body during the time interval t = 2s to t = 4s is

The displacement of a body of mass 2 kg varies with time.t. as S =t^(2

1.	The displacement of a body of mass 2 kg varies with time.t. as S =t^(2) + 2t, where S is in metres and .t.is in seconds. The work done by all the foces acting on the body during the time interval t = 2s to t = 4s is
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