- #1
blueberryfive
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four 100 kg people are holding a 1200 kg inflated balloon by means of four ropes. three people let go and the balloon accelerates upward at 2 m/ s/s. what is the tension in the rope the last person is holding?
The weight of the balloon is calculated by adding the weight of the air inside the balloon and the weight of the material that makes up the balloon itself. In this case, the weight of the air is negligible compared to the weight of the material, which is 1200 kg.
The four 100 kg people are exerting downward force on the balloon, which is counteracted by the upward force of the inflated balloon. The weight of the people is spread out evenly, so it does not cause the balloon to burst.
The balloon is able to lift the weight of the people because of the principle of buoyancy. The air inside the balloon is less dense than the surrounding air, which creates an upward force that is greater than the weight of the people, allowing the balloon to float.
If more people were added to hold the balloon, the weight of the people would increase, but the size and weight of the balloon would remain the same. This would cause the balloon to sink lower, but it would still have enough upward force to keep it from bursting.
The size of the balloon does not directly affect its ability to lift weight. As long as the balloon is able to displace enough air, it will have enough upward force to lift the weight of the people. However, a larger balloon may be able to lift more weight, as it can displace a greater volume of air.