Question: A 2.5-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. The spring has an undeformed

A 2.5-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. The spring has an undeformed length of 4 in. and a constant k. The collar is at rest at C and is given a slight push to get it moving, Knowing that the maximum velocity of the collar is achieved as it passes through point A, determine

(a) The spring constant k,

(b) The maximum velocity of collar.

3 in 7 in C B A

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