Question

A block with mass *m* = 3.27 kg is placed against a spring on a frictionless incline with angle *θ* = 35.6° (see the figure). (The block is not attached to the spring.) The spring, with spring constant *k* = 23 N/cm, is compressed 23.2 cm and then released. **(a)** What is the elastic potential energy of the compressed spring? **(b)** What is the change in the gravitational potential energy of the block-Earth system as the block moves from the release point to its highest point on the incline? **(c)** How far along the incline is the highest point from the release point?

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