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Open PART 1 of the Reader and study the Friction section. Also recall what you learned from the Strength videos. Then complete this problem. A block rests on a flat

table top. The blocks weighs 50 Newtons and a lateral force of T = 30N is needed to cause the block to slip. What is the coefficient of friction (u) for the block – table interface? What is the mobilized friction force if the block is pushed with T = 20N?

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