Final answer:
The vertical component of the baseball's velocity can be calculated using the equation Vy = Voy - gt.
Step-by-step explanation:
The vertical component of the baseball's velocity at the later time can be calculated using the equation Vy = Voy - gt, where Vy is the vertical component of the velocity, Voy is the initial vertical velocity, g is the acceleration due to gravity, and t is the time. Since up is the positive vertical direction, the vertical velocity will be positive if the initial velocity is positive and negative if the initial velocity is negative.