Q- An 80 N crate of apples sits at rest on a ramp that runs from the ground to the bed of a truck. The ramp is inclined at 30° to the ground.
(a) What is the normal force exerted on the crate by the ramp?
(b) What is the static frictional force exerted on the crate by the ramp?
(c) What is the minimum possible value of the coefficient of static friction?
(d) Find the magnitude and direction of the contact force on the crate by the ramp.
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