Question

describe the relationship between kinetic energy and mass, and give an example of how changing an objects mass changes its kinetic energy.

Explanation:

The formula for kinetic energy is $KE=\frac{1}{2}mv^{2}$, where $m$ is mass and $v$ is velocity. Kinetic energy is directly proportional to mass. If velocity is constant, increasing mass increases kinetic energy. For example, consider two cars moving at the same speed. A heavier car has more mass. According to the formula, the heavier car will have more kinetic energy than the lighter one.

Answer:

Kinetic energy is directly proportional to mass. For example, two cars moving at the same speed - the heavier car has more kinetic energy.