A child pulls a wagon from rest and accelerates at 0.12 meters per second2 to a speed of 3.0 meters per second in 5.0 seconds. This motion could best be described as [1] A) constant acceleration and constant velocity B) increasing acceleration and constant velocity
C) constant acceleration and increasing velocity D) increasing accelerating and increasing velocity

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.