Final answer:
One second after being hit, the baseball's horizontal speed remains unchanged at 22 m/s, while the vertical speed is reduced to 4.2 m/s upward due to gravity's deceleration effect.
Step-by-step explanation:
If a baseball is hit with a horizontal speed of 22 m/s and a vertical speed of 14 m/s upward, we can analyze what these speeds would be 1 second later assuming there is no air resistance affecting the horizontal motion, but gravity affects the vertical motion. The horizontal speed remains constant because there are no external forces acting in the horizontal direction. Hence, after 1 second, the horizontal speed will still be 22 m/s. However, the vertical speed will be affected by gravity, which on Earth is approximately 9.8 m/s2 downward. After 1 second, the vertical speed would be the original vertical speed minus the product of gravitational acceleration and time, which calculates to 14 m/s - 9.8 m/s2 × 1 s, resulting in a vertical speed of 4.2 m/s upward.