If a football player wants to become better at tackling by increasing his or her kinetic energy, what two ways can the player do this?

a
Decrease speed
b
Increase height
c
Increase speed
d
Increase mass

c. Increase speed and d. Increase mass.

To increase kinetic energy and become better at tackling, a football player can do the following:

1. Increase speed: By running faster towards the opponent, the player can increase their kinetic energy. This can be achieved through sprinting drills, agility training, and working on improving overall speed and acceleration.

2. Increase mass: Increasing the player's mass can also increase their kinetic energy. This can be achieved through strength training and building muscle mass. Having more mass allows the player to generate more force during a tackle, leading to an increase in kinetic energy.