The crate has a mass of 150kg and the coefficients of friction between it and the sloping dock are μs = 0.5 and μk = 0.4
(a) What tension must the winch exert on the cable to start the stationary crate sliding up the dock?
(b) If the tension is maintained at the value determined in part (a), what is the magnitude of the crates velocity when it has moved 2m up the dock?