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