Asmall cart is rolling freely on an inclined ramp with a constant acceleration of .50 m/s2 in the x-direction. at time t=0, the cart has a velocity of 2.0 m/s in the +x-direction. if the cart never leaves the ramp, describe the motion of the cart at time t> 5 s.

Two cannon balls weighing 18 kg and 24 kg are chained together and fired horizontally with a velocity of 165 m/s from the top of a 21-m wall. the chain breaks during the flight of the cannonballs and the 18-kg cannonball strikes the ground at t = 1.5 s, at a distance of 240 m from the foot of the wall, and 7 m to the right of the line of fire. determine the position of the other cannonball at that instant. neglect the resistance of the air.