Physics, 20.06.2020 04:57 ilovecatsomuchlolol

A toy cannon uses a spring to project a 5.34-g soft rubber ball. The spring is originally compressed by 5.10 cm and has a force constant of 8.05 N/m. When the cannon is fired, the ball moves 15.3 cm through the horizontal barrel of the cannon, and the barrel exerts a constant friction force of 0.031 9 N on the ball. (a) 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 5.34-g soft rubber ball. The spring is originally compressed...