When a constant force acts on an object with a mass of 8 kg for a period of 3 seconds, it increases the velocity of the object from 4 ms^-1 to 6 ms^-1. What is the gravity of the force used?

A. A raised hammer B. A bullet fired by the gun C. A moving stone D. A rotating wheel

A. Energy released by a moving object B. Energy emitted during mechanical work C. The sum of the kinetic energy and potential energy of an object D. Equal to the rate of work done

A. Force B. Energy C. Friction D. Power

A. Chemical energy B. Potential energy C. Kinetic energy D. Heat energy