Question

6 look at the free - body diagram for a situation is shown below. determine the net force (resultant) acting upon the object.
a 100 n, up
b 20 n, west
c 20 n, east
d 100 n, down

Explanation:

Step1: Analyze vertical forces

The upward force \( F_{norm} = 50\ N \) and the downward force \( F_{grav} = 50\ N \).
$$F_{vertical}=F_{norm}-F_{grav}=50 - 50=0\ N$$

Step2: Analyze horizontal forces

There is only one horizontal force \( F_{net}=F_{ext}=20\ N \) (west as per the diagram).

Answer:

B. 20 N, West