A baseball player throws a baseball horizontally at 100 mph. You drop a penny at the exact same height immediately after the ball leaves the baseball player's hand. Assuming air friction is negligible (i.e. there is no air resistance), which of the following is true?
a.Its vertical speed remains the same, and its horizontal speed remains the same
b. Its vertical speed increases, and its horizontal speed increases.
c.Its vertical speed increases, and its horizontal speed remains the same.
d. Its vertical speed increases and its horizontal speed decreases