Physics, 21.04.2020 00:17, janwesley3

A toy cannon uses a spring to project a 5.24-g soft rubber ball. The spring is originally compressed by 5.01 cm and has a force constant of 8.08 N/m. When the cannon is fired, the ball moves 15.8 cm through the horizontal barrel of the cannon, and the barrel exerts a constant friction force of 0.031 0 N on the ball. With what speed does the projectile leave the barrel of the cannon?

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A toy cannon uses a spring to project a 5.24-g soft rubber ball. The spring is originally compressed...