Question

the diagram shows a person holding a bow and arrow. which will most likely increase the kinetic energy in this system? pulling farther back on the string releasing the string holding the arrow higher decreasing the mass of the arrow

Explanation:

Kinetic energy is energy of motion. When the string of the bow is pulled back, elastic - potential energy is stored. Releasing the string converts this potential energy to kinetic energy of the arrow. Pulling farther back on the string stores more elastic - potential energy, which will result in more kinetic energy when released. Holding the arrow higher affects gravitational - potential energy, not kinetic energy directly. Decreasing the mass of the arrow doesn't increase the kinetic energy in the system in the context of the initial setup; it just affects the speed of the arrow for a given amount of energy.

Answer:

pulling farther back on the string