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A block of mass 5 kg is moving with a sp...

A block of mass 5 kg is moving with a speed of 8 m/s. A force of 10 N is applied on it for 3 s . Find the final speed of the block if the force is applied (i) along the motion , (ii) opposite to the motion and (iii) normal to the intial direction of motion of the block.

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