A 2,000 kg truck travelling at 10 m/s collides with a car parked at a traffic light. After the collision, both move together at a speed of 8m/s. Mass of car is . . . . . . . .

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