Question
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
Increase mass
b
Increase speed
c
Increase height
d
Decrease speed
a
Increase mass
b
Increase speed
c
Increase height
d
Decrease speed
Answers
GPT-4o mini
To increase kinetic energy, a football player can do the following:
a. **Increase mass** - The kinetic energy of an object is given by the formula \( KE = \frac{1}{2}mv^2 \), where \( m \) is mass and \( v \) is velocity (speed). Increasing mass (while maintaining speed) will increase kinetic energy.
b. **Increase speed** - As mentioned in the kinetic energy formula, increasing the speed (velocity) of the player will also increase the kinetic energy, since kinetic energy depends on the square of the speed.
Thus, the two ways the player can increase kinetic energy are **a** (Increase mass) and **b** (Increase speed).
a. **Increase mass** - The kinetic energy of an object is given by the formula \( KE = \frac{1}{2}mv^2 \), where \( m \) is mass and \( v \) is velocity (speed). Increasing mass (while maintaining speed) will increase kinetic energy.
b. **Increase speed** - As mentioned in the kinetic energy formula, increasing the speed (velocity) of the player will also increase the kinetic energy, since kinetic energy depends on the square of the speed.
Thus, the two ways the player can increase kinetic energy are **a** (Increase mass) and **b** (Increase speed).