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Friction Practice Test
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Q1
A truck driver is making a delivery. He takes a 287kg box out of his semi-truck by having it slide down a 33o ramp that is 5.5m long. To ensure that the box doesn't accelerate down the ramp, the driver pushes back on it so that the box's constant speed is 
. If the coefficient of friction is 0.4, calculate the work done by the frictional force.
A truck driver is making a delivery. He takes a 287kg box out of his semi-truck by having it slide down a 33o ramp that is 5.5m long. To ensure that the box doesn't accelerate down the ramp, the driver pushes back on it so that the box's constant speed is