APFIVE Static Friction on an Inclined Plane
A 5.0 kg crate rests on a ramp inclined at 20° to the horizontal. The coefficients of static and kinetic friction between the crate and ramp are μₛ = 0.45 and μₖ = 0.30, respectively. What minimum force parallel to the ramp is required to start the crate moving up the ramp?
A
49.3 N
B
66.1 N
C
16.8 N
D
33.7 N
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