A toy cannon uses a spring to project a 5.30g -soft rubber ball.The spring is originally compressed by a 5.00 cm and has

[answerhappygod]

A toy cannon uses a spring to project a 5.30g -soft rubber
ball.The spring is originally compressed by a 5.00 cm and has a
force constant of 8.00N/m. when the cannon is fired, the ball
moves15.o cm through the vertical barrel of the cannon and the
barrel exerts a constant friction force of 0.032 N of the ball.
a)with what speed does the projectile leave the barrel of the
cannon? b)at what point does the ball have max speed? c)What is the
maximum speed.