Please help

A student fires a cannonball diagonally from the ground as shown. Neglect drag and the initial height of the cannonball. After the ball lands on the ground enter zero for all speeds and heights if necessary. . Round all accelerations and speeds to the nearest whole number (if necessary). 20m/s 22m/s . Neglect the initial height of the cannonball. . After the ball lands on the ground enter zero for all speeds and heights (if necessary). ax = unit av = unit unit unit unit 9m/s O N m LO direction of motion at 1s