A player throws a ball upward with an initial speed of `29.4 m//s`.What is the direction of acceleration during theupward motion of the ball?

A player throws a ball upward with an initial speed of 29.4 m//s .What is the velocity and acceleration at the highest point of motion?

A player throws a ball upward with an initial speed of 29.4 m//s .After how long does the ball return to the player’s hand, (g = 9.8 m//s^2,neglect air resistance)