To stop a 1.2 kg ball going 7.8 m/s, requieres 1.2 N over 3.2 seconds to stop. What was the momentum of the ball ?

How would doubling the made of an object change the objects potential energy

In a system, when potential energy decreases, then entropy also decreases. true false

Anonzero net force acts on a particle and does work. which one of the following statements is true? the kinetic energy of the particle changes, but the speed of the particle does not change. the kinetic energy of the particle does not change, but the speed of the particle does change. the kinetic energy of the particle changes, but the velocity of the particle does not change. the kinetic energy and the speed of the particle change, but the velocity of the particle does not change. the kinetic energy, speed, and velocity of the particle change.