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21-09-2016
Physics

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What force is necessary to accelerate a 70-kg object at a rate of 4.2 m/s2 ? Show your wo k below?

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21-09-2016

Newton's 2nd law of motion:

   Force = (mass) x (acceleration)

   = (70 kg) x (4.2 m/s²)

   = (70 x 4.2) kg-m/s²

   =    294 newtons .

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