# physics

an aluminium of mass 2.1 kg rests on a steel platform. A horizontal force of 15N is applied to block(a) given the coefficient of limiting friction is 0.61 will the block move? (b)if it moves what will be its acceleration?

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1. 2.1 * 9.81 * .61 = 12.57 Newtons maximum friction force
so no

15 - 12.56 = 2.43 Newton net force

a = F/m = 2.43 / 2.1 = 1.16 m/s^2

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posted by Damon

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