FIGURE 5-1
-In Fig. 5-1, the block of mass m is at rest on an inclined plane that makes an angle θ with the horizontal. The force of static friction f must be such that
A)f mg.
B)f mg cosθ.
C)f mg sinθ.
D)f = mg cosθ.
E)f = mg sinθ.

Question

FIGURE 5-1 
-In Fig. 5-1, the block of mass m is at rest on an inclined plane that makes an angle θ with the horizontal. The force of static friction f must be such that
A)f > mg. 
B)f > mg cosθ. 
C)f > mg sinθ. 
D)f = mg cosθ. 
E)f = mg sinθ.

Quizplus · Accepted Answer

The Answer is E

FIGURE 5-1 -In Fig. 5-1, the Block of Mass M Is at M