The 200-kg crate rests on the ground for which the coefficients of static and kinetic friction are μ_s = 0.5 and μ_k = 0.4, respectively. The winch delivers a horizontal towing force T to its cable at A which varies as shown in the graph. Determine the speed of the crate when t = 4 s. Originally the tension in the cable is zero.

Transcribed Image Text:

T (N) 800 T= 400 ¹/2 4 -t (s) A T