What determines an object's kinetic energy?

Mass and speed
Weight and speed
Mass and position
Weight and position

Mass and speed determine an object's kinetic energy.

The correct answer is: Mass and speed.

An object's kinetic energy is determined by its mass and its speed. The kinetic energy of an object increases as its mass increases, and it increases even more significantly as its speed increases. Mathematically, the kinetic energy (KE) of an object can be calculated using the equation KE = 1/2 * m * v^2, where m represents the mass of the object and v represents its velocity or speed.