Posted by **Willow** on Thursday, October 17, 2013 at 5:36pm.

A 3.5 × 103

kg car accelerates from rest at

the top of a driveway that is sloped at an angle of 16.9◦ with the horizontal. An average frictional force of 4.1×103 N impedes the car’s

motion so that the car’s speed at the bottom of the driveway is 4.2 m/s.

The acceleration of gravity is 9.81 m/s^2.

What is the length of the driveway?

Answer in units of m

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