Answer to Question #192216 in Physics for Nxndnwnx

Question

1. You are helping a friend move, and you need to load a 2.65×102 kg box of ducks. You slide the box up a ramp, which has an incline of 30.0° and a coefficient of static friction of 0.45. You apply the force on the box at an angle of 39.0° with respect to the ramp.

a) Calculate the minimum force needed to slide the box up the ramp.

b) Now you want to stop halfway up the ramp. What coefficient of static friction must exist between the box and the ramp for the box to stay in place? (0.45 does not give enough static friction to stop box from sliding down)

Answer 1

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