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) 250 n 50 kg 50 n -50 n

Explanation:

Step1: Define the forces

Let the downward force \(F_{down}=- 100\space N\) (negative as per the problem's assignment) and the upward force \(F_{up}=150\space N\).

Step2: Calculate the net force \(F_{net}\)

Use the formula \(F_{net}=F_{up}+F_{down}\).
Substitute the values: \(F_{net}=150+( - 100)\).

$$F_{net}=150 - 100=50\space N$$

Answer:

50 N