Question

A basketball referee tosses the ball straight up for the starting tip-off. At what velocity must a basketball player leave the ground to rise 1.25 m above the floor in an attempt to get the ball? (Assume that the player gets the ball at his maximum height.)

Answer 1

Answer:4.95 m/s

Explanation:

Given

Ball rises to a height of 1.25 m

Let u be the velocity of player while leaving ground .

Its final velocity will be zero as he reaches a height of 1.25 m

thus

$u^2=2gh$

$u=\sqrt{2\times 9.81\times 1.25}$

$u=\sqrt{24.525}$

u=4.952 m/s