5. A 0.458-kg baseball has a velocity of magnitude 16.0 m/s and an angle of 30.0 degrees just before colliding with a bat. Just after the collision, the ball is traveling directly horizontally with a velocity of magnitude 13.0 m/s. The duration of the collision is 2.50 ms.
a. Calculate the magnitude of the average collision force on the ball from the bat.
b. Calculate the change in the ball's kinetic energy.