Dale skis down a hill with a slope of 30°. Given that there is friction acting between his skis and the snow as he moves, which of the following is the
correct free-body diagram for Dale?
Normal
force
Normal
force
Normal
force
Normal
force
Friction
Friction
Friction
Friction
Weight
Weight
Weight
Weight
А
B
С
D
A. A
O
B. B.
C. C
O
u
D. D
l

Answer

For Apex, the answer is B.

Explanation

The arrow labeled "weight" always points down in these diagrams.

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