Question

Please answer :( gravity question for science

Answer 1

The two forces acting on your body are the weight and the normal  force

Explanation:

As you sit on your chair in front of the computer, there are 2 forces acting on you:

• The force of gravity, of magnitude $mg$ (where m is your mass and $g=9.8 m/s^2$ is the acceleration of gravity), acting downward
• The normal reaction exerted by the chair on your body, N, acting upward, and balancing your weight

We can apply Newton's second law to this situation; the law states that the net force acting on an object is equal to the product between the mass of the object and its acceleration:

$\sum F = ma$

where

$\sum F$ is the net force

m is the mass

a is the acceleration

For your body sitting on the chair,

$\sum F = N-mg$

we also know that your body is at rest, so the acceleration is zero:

$a=0$

This means that the net force is zero, and therefore:

$\sum F = 0 =N-mg\\\rightarrow N = mg$

Learn more about Newton's second law of motion:

brainly.com/question/3820012

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