The correct statement is:
the ping pong ball requires less force to move 5 ft forward because the mass of the ping pong ball is less than the mass of the bowling ball.
This is because, according to Newton's second law of motion (F = ma), the force required to move an object is directly proportional to its mass. The ping pong ball has significantly less mass than the bowling ball, so it requires less force to move it the same distance.