A Mercedes-Benz 300SL (m = 1700 kg) is parked on a road that rises 20° above the horizontal. (a) What is the magnitude of the normal force? (b) What is the static frictional force that the ground exerts on the tires? 2. Relevant equations FN=Wcos(theta) Wsin(theta)=Framp (at least that's what was given in lecutre) 3. The attempt at a solution To find the weight using 1700kg*9.8, but when I plug that in, the computer program (gotta love these for homework assignments...:grumpy:) says no. I'm lost as to how to proceed. Help would be greatly appreciated.