Awheeled cart is free to move along the x-axis. the cart has a mass of 4.00 kg and an initial velocity of 4.00 m/s in the +xdirection when it is at x = 0 m. if the cart is between x = –1 m and x = +2 m, the net force is 1.00 n in the positive xdirection. if the cart is between x = +2 m and x = +7 m, the net force is 4.00 n in the negative x-direction. if the cart is between x = +7 m and x = +8 m, the net force is 2.00 n in the positive x-direction. the net force is zero at all other locations.