Suppose a man is sitting on a chair and exerting 100 N of force downward, while a spring beneath the chair exerts 150 N of force upward. If you assign a negative value to the downward force, what is the net force of this system?(1 point) Responses 250 N 250 N 50 N 50 N -50 N -50 N 50 kg

Answer 1

To calculate the net force of the system, we take into account the forces acting in the upward and downward directions. Given that the downward force exerted by the man is 100 N (which we will assign as negative) and the upward force exerted by the spring is 150 N (which we assign as positive), we can set up the equation for net force (F_net) as follows:

\[ F_{\text{net}} = F_{\text{up}} + F_{\text{down}} \]

Substituting the given values:

\[ F_{\text{net}} = 150 , \text{N} + (-100 , \text{N}) = 150 , \text{N} - 100 , \text{N} = 50 , \text{N} \]

Thus, the net force of the system is 50 N.

So, the correct response is 50 N.