The resultant force can be obtained by subtracting vector C from Vector A and the value of net force is 12 N. Hence, option (C) is correct.
Given data:
The weight of man is, W = 250 N.
The magnitude of applied force is, F = 20 N.
The magnitude of frictional force is, f = 8 N.
As per the given problem and the diagram let the applied force be denoted by vector A, Then,
Magnitude of Vector A = 20 N
And the frictional force be denoted by vector C. Then,
Magnitude of Vector C = 8 N
We know that the role of frictional force is to oppose the motion or to oppose the effect of applied force. Then the resultant force is given as,
[tex]F_{net} = F-f\\\\F_{net} = 20 - 8\\\\F_{net} = 12 \;\rm N[/tex]
Thus, we can conclude that the resultant force can be obtained by subtracting vector C from Vector A and the value of net force is 12 N. Hence, option (C) is correct.
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