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1 x 103 kg car starts from rest at the top of a driveway that is sloped at an angle of 20 with the horizontal. An average friction force of 4.

A 2.1 x 103 kg car starts from rest at the top of a driveway that is sloped at an angle of 20°
with the horizontal. An average friction force of 4.0 x 103 N impedes the car’s motion so that its
speed at the bottom of the driveway is 3.8 m/s. What is the length of the driveway?

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