Question

Two forces each of magnitude 2N act vertically upwards and downwards respectively at the two ends of a uniform rod of length 1m which is pivoted at its centre. determine the resultant moment of forces about the mid point of the rod​

Answer 1

Answer:

Resultant moment = 2 N m

Explanation:

 

Figure shows a rod AB of length 1 m is pivoted at centre C. At A, 2N force acting upward and at B 2N force acing downward.

 

If we take moment of the forces about C, both moments are clockwise moments.

 

Moment at A = 2N × 0.5 m = 1 N m

Moment at B = 2N × 0.5 m = 1 N m

 

Resultant moment = 2 N m