A force of 300 N is applied to a 20 kg crate at an angle of 30o below the horizontal. Determine the acceleration of the crate as it moves along the horizontal surface. The coefficient of friction between the crate and the surface µk is 0.50.
A cake rests in a cardboard box on the horizontal surface of the seat of your car which is traveling at 11 m/s. If the coefficients of friction are µk = 0.3 and µs = 0.5, find the minimum stopping distance necessary to keep the cake box from sliding off the seat.
Six 5 N blocks are stacked vertically. The coefficient of static friction between the blocks is µs = 0.20. Determine the horizontal force that must be applied to the fifth block from the top of the stack, in order to slide it out without moving the other blocks.
