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what must be the mass of a rock if a boy applies a 64N force and causes it to accelerate at 4.51m/s2

Respuesta :

hilena16

first of all the formula of force is F=ma,so we are searching for m,so we can divide a on both sides F/a=m, after this substitute the values given above 64N/4.51=14.2°Kg

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