Question: The 6-lb ball is fired from a tube by a spring having a stiffness k = 20 lb/in. Determine how far the spring must be

The 6-lb ball is fired from a tube by a spring having a stiffness k = 20 lb/in. Determine how far the spring must be compressed to fire the ball from the compressed position to a height of 8 ft, at which point if has a velocity of 6 ft/s.

6 ft/s 8 ft k-20 lb/in.

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