What is the minimum work needed to push a 850 kg car 940 m up along a 9.5 degree incline?

Part A: Ignore Friction

Part B: Assume the effective coefficient of friction retarding the car is 0.20.

3 answers

a. work= mg*940sin9.5
b. work= work above+mg*mu*distance
what is mu?
The mass times the coefficient of friction