Question

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

50 N
50 N

-50 N
-50 N

50 kg
50 kg

250 N

Answer 1

To find the net force in this system, you can add the forces together, taking into account the assigned signs.

- The downward force exerted by the man is -100 N (negative because it is downward).
- The upward force exerted by the spring is +150 N.

Now, calculate the net force:

Net Force = Upward Force + Downward Force
Net Force = 150 N + (-100 N)
Net Force = 150 N - 100 N
Net Force = 50 N

So, the net force of this system is **50 N**.