The book A having a weight of 1.5 lb slides on the smooth horizontal slot. If the block is drawn back so that s = 0. Each of the two springs has a stiffness of k = 150 lb/ft and an unstretched length of 0.5 ft.

1. 

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The book A having a weight of 1.5 lb slides on the smooth horizontal slot. If the block is drawn back so that s = 0. Each of the two springs has a stiffness of k = 150 lb/ft and an unstretched length of 0.5 ft.
[A]. vA = 106.2 ft/s
[B]. vA = 120.4 ft/s
[C]. vA = 160.5 ft/s
[D]. vA = 107.7 ft/s

Answer: Option A

Explanation:

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