a 7900 kg car accelerates from rest at the top of a drivewaythat is sloped at an angle of 16.7 degrees with the horizontal. anaverage frictional force of 4500 newtons impedes the car's motionso that the car's speed at the bottom of the driveway is 4.9 metersper second. the acceleration of gravity is 9.81 meters per secondsquared. what is the length of the driveway? answer in units ofmeters.