PROBLEM 13.19 The system shown, consisting of a 20-kg collar A and a 10-kg counterweight B, is at rest when a constant 500-N force is applied to collar A. (a) Determine the velocity of A just before it hits the support at C. (b) Solve part a assuming that
1. Block A weights 356N and block B weights 71N. The coefficients of friction between all surfaces of contact are s = 0.20 and k = 0.15. Knowing that P = 44.5 N , determine (a) the acceleration of block B, (b) the tension in the cord. (B.,J.&C. 12.17)
hA = 4300 km A vA
Knowing that the velocity of an experimental space probe fired from the earth has a magnitude v A 32.5 Mm/h at point A, determine the velocity of the probe as it passes through point B.
R = 6370 km
hB = 12700 km B