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a man of 1kg is acted upon a single force Fvector=(4i+4j)N.Due to force, mass is (D,0) to(1m,1m).If initially the speed of the particle 2m/s.Its final speed showd approximately be ?

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(A).6m/s(B).4.5m/s(C).8m/s(D).7.2m/s

4.5m/s

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