A block of mass 5 kg sits on an incline of 55 degrees. The coefficients of friction between the block and the ramp are µs = 0.7 and µx = 0.25. m O = 55° a) Will the block slide on the ramp? (prove your answer) b) If the block does slide, what will its acceleration be? c) If you have time: for this angle, what is the lowest possible static friction coefficient for the block to remain at rest? (for coefficients smaller than this value, the block will slide)

A block of mass 5 kg sits on an incline of 55 degrees. The coefficients of friction between the block and the ramp are µs = 0.7 and µx = 0.25. m O = 55° a) Will the block slide on the ramp? (prove your answer) b) If the block does slide, what will its acceleration be? c) If you have time: for this angle, what is the lowest possible static friction coefficient for the block to remain at rest? (for coefficients smaller than this value, the block will slide)