A basketball star is practicing his shooting. He releases the ball at time t=0 at a point 2.25 m above the ground. He shoots the ball so that it leaves his hand with a velocity of 9 m/s [N40U]. The ball moves a horizontal distance x before striking the ground without hitting anything.

a. What horizontal distance x will the ball travel before it hits the ground? (how to get the answer of 10.3 m)

b. At what speed will the basketball strike the ground? (how to get answer of 11.2 m/s)