Sir dudley the dextrous is loading cannons on top of the castle\'s tallest towers in preparation for an expected attack. he slips, and a 18.0 kg cannonball rolls to the edge of the tower (which has a perfectly horizontal surface), and falls to the ground below. it takes the cannonball 2.15 seconds to fall to the ground, and air resistence is negligible. how much work is done by gravity on the falling the fall, what is the average power transfer to the cannonball due to the force of

A250-n box is at rest on a frictionless horizotal floor. then a person shoves the box with a non-zero force of magnitude p. which statement best describes the relationship betweeen p and the motion of the box after it was shoved? -the box will not move when p< 250n but otherwise will accelerate at a constant rate that is directly proportional to p - the box will begin moving at a speed that is directly proportional to p, then will gradually slow to a halt -the box will move with constant velocity at a speed that is directly proportional to p -box will accelerate across the floor at a constant rate that is directly proportional to p