A man of mass m1 = 84kg wants to move a rectangular blo ck of mass M = 110kg on a at surface. The coefficient of static friction b etween the block and the surface is μs = 0.80. The co ecient of kinetic friction b etween the block and the surfaces is μk = 0.72. a) Initially a child of mass m2 = 27kg sits on top of the blo ck. If the man pushes horizontally on the block with a force of Fh = 990N, show whether the block will move or not.

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