with which the crate reaches thebottom of the chute (immediately before the crate’s trajectory becomes horizontal)?
A crate, initially traveling horizontally with a speed of 18 ft/s, is made to slide down a 14 ft chute inclined at 35◦. The surface of the chute has a coefficient of kinetic frictionμk, and at its lower end, it smoothly lets the crate ontoa horizontal trajectory. The horizontal surface at the end of the chute has a coefficient of kinetic frictionμk2. Model thecrate as a particle, and assume that gravity and the contact forces between the crate and the sliding surface are the onlyrelevant forces.Using conservation law methods, ifμk= 0.35, what is the speed with which the crate reaches thebottom of the chute (immediately before the crate’s trajectory becomes horizontal)?
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