A 1.5-kg block A rests on a 1.5-kg block B and is attached to a spring of constant 180 N/m. The coefficients of friction between the two blocks are 0.35 μs = and 0.30 μk = and the coefficients of friction between block B and the horizontal surface are 0.15 μs = and 0.10. μk = Knowing that the blocks are released from rest when the spring is stretched 100 mm, determine

(a) The velocity of block A as it reaches the position in which the spring is unstretched,

(b) The maximum velocity of block A.

Transcribed Image Text:

k = 180 N/m www B A