Velocity question...i can't figure it out :( A person throws a baseball straight up from the ground. The baseball leaves the persons hand with an initial velocity of 10.0 m/s [up]. The acceleration of the ball is 9.81 m/s 2 [down]. Assume up as the positive direction. a. what is the velocity of the baseball after 0.50 s? b. what is the velocity of the baseball after 1.50 s? THANK YOU SOOO MUCH IN ADVANCE!