Consider a girl that has a mass of 55.0 kg and is standing on the floor, how much supporting force does the floor have
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Ответ:
Explanation:
m = 55 kg
a = 9.8
F = ?
The first thing you are going to do is find the force that the girl represents.
F = 9.81 * 55
F = 539.55
But that is not the answer. That is her weight. A very important part of this question is to realize that the floor is pushing up on her with an equal force.
Her weight is going DOWN.
The floor is pushing UP with a force of 539.55 Newtons.
Ответ:
The correct answer will be option-2
Explanation:
A model is the simplified visual representation of the complex systems which is used by the scientific communities.
A model can be used to represent very large systems like the solar system and very small models like microscopic things to explain it to the layman.
The model is also used by the scientific researcher to test the hypothesis, therefore, it is very important in the scientific world.
Since it does not help study the systems which prove very dangerous to humanity and the universe, therefore, option-2 is the correct answer