Copyright © Michael Richmond.
This work is licensed under a Creative Commons License.
Question 1:
Ken Griffey, Jr., hits a baseball so that it has an initial velocity of 45 m/s at an angle 30 degrees above the horizontal.
Describe the acceleration of the ball as it flies through the air.
Answer: The ball maintains a constant speed in the horizontal direction.
-> acceleration in the x-direction = 0
The ball accelerates constantly in the vertical direction,
due to gravity:
-> acceleration in the y-direction = -9.8 m/s^2
Copyright © Michael Richmond.
This work is licensed under a Creative Commons License.