1) At the instant shown, the system is at rest and the k=4 kipn spring is…

1) At the instant shown, the system is at rest and the k=4 kipn spring is compressed in. Determine, (a) the velocity of block A after block B has moved in (1) (b) the maximum velocity of block B (c) the maximum extension in the spring 2 200 lb 4 kip/ft 350 lb 30°