Chopper in a box (2/9)
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boxxx?
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weight is a measure of net force the box and scale exert on each other.
If the chopper was much bigger, it could make the scale read less, but that would happen soon before the chopper lifted the box entirely off the scale.
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everyone's talking about the Heli weighs X and it takes X+ to lift it. therfore no change in weight .... what if the air was allowed to circulate? what if there were holes in the top of the box (air inlet) and holes on the sides near the bottom (air outlet)? Then the air wouldnt be trapped cancel everything out. I do recognize that air comming in would weigh something but the idea here is that the air is free to travel in and out as opposed to always being contained. whatchya think?
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Get a lighter box.
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I'm reminded of a time when I was in primary school, and we had a baloon debate (look it up) and one of the people said they would stand on one leg and weigh less...
...And then the teacher aggreed...
I disputed, and was told to be quiet.
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what is this witchcraft! lolz
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I NOW WHY BACUSE THE CHOPPER IS NOT HAVY
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because the matter never changes mass
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I saw this one on mythbusters, and me and my dad were mystified. Im not really sure whats going on to do this but my best guess would be the all the air that the helicopter is pushing downward to create thrust is hitting the ground of the box and it cancels out the weight of the helicopter as it isnt touching the ground. So basically if it ways 250 grams then thrust needs to put out 250 grams of thrust, so maybe if it was flown outside and left the box it would be 250 grams lighter
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its just the thrust from the blades the helicopter need to keep up in the air so the thrust needs to be the same as the helicopter's weight and it adds a little more thrust so it can rise (about more 10-20 so the scale shows a bit more than 10250)
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the force need to make the helicopter fly, is the same amount that will be pushed against the bottom of the box. i believe this represents newtons third law...
varvaris 2 years ago 15
Assuming the elastic bands are for stability, does it weigh the same because the mass of the helicopter is displaced against the mass of the air pushing downwards onto the base of the box transferring the force in Newtons generated by rotor blades? Weight is a force directly proportional to mass. It doesnt matter if the box is filled with liquid or gas as the result is the same. Is that right? I'd rather make an attempt at a guess and sound silly for getting it wrong than make no attempt at all.
TableWolfMusic 2 years ago 6