A hot-air balloon has a mass of
350 kg. The balloon is near the
ground, and two ropes were thrown out for people on the ground to grab onto in order to help
pull the balloon to the ground. Before the ropes are pulled, the balloon accelerates
vertically downward at 0.25 m/s2. And when the ropes are pulled, it accelerates
downward at 1.5 m/s2. Each rope has the same force applied to it, and each person
pulling on the rope has a mass of 75 kg. How many newtons does each person who holds a rope
apparently weigh while holding onto it?