A toy cannon uses a spring to project a 5.39-g soft rubber ball.The spring is originally compressed by 5.04 cm and has a forceconstant of 8.10 N/m. When the cannon is fired, the ball moves 15.6cm through the horizontal barrel of the cannon, and the barrelexerts a constant friction force of 0.032 5 N on the ball.
(a) With what speed does the projectile leave the barrel of thecannon?
m/s
(b) At what point does the ball have maximum speed?
cm
(from its original position)
(c) What is this maximum speed?
m/s
