A body of mass 3 kg is under a constant force which cause a displacement s in metres in it, given by the relation s=1/3 t², where t is in seconds. Work done by the force in 2 seconds is

Options

(a) 19/5 J
(b) 5/19 J
(c) 3/8 J
(d) 8/3 J

Correct Answer:

8/3 J

Explanation:

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