Answer
The basketball player pushes the ground in the downward direction.
From newtons third law, the ground pushes the player in the upward direction.
The ground exerts a force on the player in the upward direction.
The force exerted by the ground is greater than the gravitational force.
Hence the player jumps up.
Work Step by Step
The basketball player pushes the ground in the downward direction.
From newtons third law, the ground pushes the player in the upward direction.
The ground exerts a force on the player in the upward direction.
The force exerted by the ground is greater than the gravitational force.
Hence the player jumps up.