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Newton's Second Law

144.A roller ...

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144.A roller of mass 500 kilogram is attached by a light horizontal chain to a tractor of mass 1000 kilograms. The backward force of friction exerted by the ground is 1000 N. If the system has a forward acceleration of 2m/s2, calculate : (a) the forward force of the ground on the tractor (b) the tension in the chain.

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