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А force of 2N acting on a body changes its velocity uniformly from 2 m/s to 5 mls in 10 seconds .
Calculate the mass of the body .
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A fixed pulley of radius 10cm and moment of inertia 0.01kg m
2
about its axle has a massless cord wrapped around its rim. A 1kg mass is attached to the end of the cord. The pulley can rotate about its axis without any friction. Find the acceleration of the mass : (Assume g=10m/s
2
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see the above photo for the solution
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