Determine the minimum force F needed to push the two 75-kg cylinders up the incline. The force acts parallel to the plane and the coefficients of friction at the contacting surfaces are A = 0.3, B = 0.25, C = 0.4. Each cylinder has a radius of 150 mm.

Determine the minimum force F needed to push the two 75-kg cylinders u

1.	Determine the minimum force F needed to push the two 75-kg cylinders up the incline. The force acts parallel to the plane and the coefficients of friction at the contacting surfaces are A = 0.3, B = 0.25, C = 0.4. Each cylinder has a radius of 150 mm.
A.	F = 919 N
B.	F = 735 N
C.	F = 1.051 kN
D.	F = 981 N
Answer» D. F = 981 N