A toy cannon uses a spring to project a 5.28-g soft rubber ball. The spring is originally compressed by 4.90 cm and has a force constant 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? 1.34 m/s (b) At what point does the ball have maximum speed? 15.9 x What is the sign of the acceleration an instant before the velocity reaches a maximum and an instant after the velocity reaches (c) What is this maximum speed? 1.34 x Note that the spring still has potential energy at this point, which you must include in your energy equation. m/s
A toy cannon uses a spring to project a 5.28-g soft rubber ball. The spring is originally compressed by 4.90 cm and has a force constant 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? 1.34 m/s (b) At what point does the ball have maximum speed? 15.9 x What is the sign of the acceleration an instant before the velocity reaches a maximum and an instant after the velocity reaches (c) What is this maximum speed? 1.34 x Note that the spring still has potential energy at this point, which you must include in your energy equation. m/s
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