FK + mgsingtheta - FT = m1ax (block A)
Ft - Fg = m2gy (block b)
ukmgcostheta - mgsintheta - FT = m1ax
Ft - (wB) = (wB/9.8)a
ukmgcostheta + mgsintheta - Ft (< sub in Ft from the last equation)
Body A in Fig. 6-36 weighs 100 N, and body B weighs 77 N. The coefficients of friction between A and the incline are μs = 0.52 and μk = 0.28. Angle θ is 31°. Let the positive direction of an x-axis be down the slope. What is the acceleration of A if A is initially (a) at rest, (b) moving up the...