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April 23, 2014

Homework Help: physics

Posted by amy on Saturday, October 31, 2009 at 8:10pm.

Truck brakes can fail if they get too hot. In some mountainous areas, ramps of loose gravel are constructed to stop runaway trucks that have lost their brakes. The combination of a slight upward slope and a large coefficient of friction in the gravel brings the truck safely to a halt.

Suppose a gravel ramp slopes upward at 4.70 and the coefficient of friction is 0.410. Find the length of a ramp that will stop a 14980.0 kg truck that enters the ramp at 37.0 m/s.

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