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July 24, 2014

Homework Help: Physics

Posted by alice on Wednesday, December 12, 2012 at 10:11pm.

A 4.2 ◊ 10^3
kg car accelerates from rest at
the top of a driveway that is sloped at an angle of 18.4◦
with the horizontal. An average
frictional force of 4.1◊10^3 N impedes the carís
motion so that the carís speed at the bottom of the driveway is 4.9 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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