Physics, 20.08.2019 22:30, mem8163

A300 g hockey puck is shot across an ice-covered pond. before the puck was hit, it was at rest; after the hit, the puck has a speed of 40 m/s, and comes to rest after going a distance of 30 m. (a) describe how the energy of the puck changes over time, giving the numerical values of any work or energy involved. (b) find the magnitude of the net friction force.

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A300 g hockey puck is shot across an ice-covered pond. before the puck was hit, it was at rest; aft...