A sled weighing 60.0 N is pulled horizontally across snow
Chapter 4, Problem 4.76(choose chapter or problem)
A sled weighing 60.0 N is pulled horizontally across snow so that the coefcient of kinetic friction between sled and snow is 0.100. A penguin weighing 70.0 N rides on the sled, as in Figure P4.76. If the coefcient of static friction between penguin and sled is 0.700, nd the maximum horizontal force that can be exerted on the sled before the penguin begins to slide off.
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