Dave pushes a shopping cart with a constant force of 10.0 Newton’s across the floor of a grocery store. The frictional force exerted by the floor is 4.0 Newtons, and the acceleration of the cart is 1.0 meters/second^2. What is the mass of the shopping cart?

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.