The equilibrium condition allows finding the result for the force that the chair exerts on the student is:
- The reaction force that the chair exerts on the student's support is equal to the student's weight.
Newton's second law gives the relationship between force, mass and acceleration of bodies, in the special case that the acceleration is is zero equilibrium condition.
             ∑ F = 0
Where F is the external force.
The free body diagram is a diagram of the forces on bodies without the details of the shape of the body, in the attached we can see a diagram of the forces.
Let's analyze the force on the chair.
              
Let's analyze the forces on the student.
            
            
In conclusion using the equilibrium condition we can find the result for the force that the chair exerts on the student is:
- The reaction force that the chair exerts on the student's support is equal to the student's weight.
Learn more here: brainly.com/question/18117041
 
        
             
        
        
        
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Answer: One quarter of the force
Explanation:
According to Newton's law of Gravitation, the force  exerted between two bodies of masses
 exerted between two bodies of masses  and
 and  and separated by a distance
  and separated by a distance  is equal to the product of their masses and inversely proportional to the square of the distance:
  is equal to the product of their masses and inversely proportional to the square of the distance:
 (1)
    (1)
Where  is the gravitational constant
is the gravitational constant
This means that the gravity force decreases when the distance between these two bodies increases.
In this context, if the distance between the capsule and the Earth increases twice, the new distance will be  .
. 
Substituting this distance in (1):
 (2)
    (2)
 
    
<u>Finally:</u>
 >>>This means the force toward Earth becomes one quarter "weaker"
>>>This means the force toward Earth becomes one quarter "weaker"
 
        
             
        
        
        
Answer:
See the explanation below.
Explanation:
This analysis can be easily deduced by means of Newton's second law which tells us that the sum of the forces or the total force on a body is equal to the product of mass by acceleration.
∑F = m*a
where:
F = total force [N]
m = mass [kg]
a = acceleration [m/s²]
We must clear the acceleration value.

We see that the term of the mass is in the denominator, so that if the value of the mass is increased the acceleration decreases, since they are inversely proportional.
 
        
             
        
        
        
Answer:

Explanation:
In order to solve this problem, we mus start by drawing a free body diagram of the given situation (See attached picture).
From the free body diagram we can now do a sum of forces in the x and y direction. Let's start with the y-direction:



so:

now we can go ahead and do a sum of forces in the x-direction:

the sum of forces in x is 0 because it's moving at a constant speed.



so now we solve for theta. We can start by factoring mg so we get:

we can divide both sides into mg so we get:

this tells us that the problem is independent of the mass of the object.

we now divide both sides of the equation into  so we get:
 so we get:


so we now take the inverse function of tan to get:

so now we can find our angle:

so
