Which best describes the motion of the object between 1 and 4 seconds?

The object has decreasing acceleration and increasing

velocity.

The object has positive acceleration and eventually stops.

The object has decreasing acceleration and decreasing

velocity.

The object has negative acceleration and eventually

stops.

O

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.