Acart of mass m can move without friction on an air track. initially, it is at rest. then, for a limited time delta t, it is pushed down the track with a constant force f. which of the following statements are true? when you stop pushing, the cart starts slowing down again the higher the mass of the cart, the harder you have to push to achieve the same final speed in the same amount of time. you exert a larger force on the cart than the cart exerts on you. leaving all other quantities unchanged, what happens in the scenarios below? bullet if you use a cart with half the mass, you cover distance during pushing. bullet if you use half the force, you reach final speed. bullet if you push half as long, you cover distance during pushing. bullet if you use a cart with half the mass, you reach final speed.