Recent content by TrueBloodFan

I have worked this problem repeatedly and keep getting the answer 4.0, but I know that the answer is 5.1. What am I doing wrong? A 2.1 x 10^3 kg car starts from rest at the top of a driveway that is sloped at an angle of 20 degrees with the horizontal. An average friction force of 4.0 x 10^3 N...

There are two forces in the problem: "One is a forward force of 1140 N provided by traction between the wheels and the road. The other is a 950 N resistive force due to various frictional forces." If I add these two forces together (-950 + 1140) will I have the net force?