Question

1. Three identical uniform rods are each acted on by two or more forces, all perpendicular to the rods and all equal in magnitude. Which of the rods could be in static equilibrium if an additional force is applied at the center of mass of the rod ? (1) Only 2 (2) Only 1 and 2 (3) Only 1 (4) Only 3​

Answer 1

Answer:

2) option is correct

thnx

Answer 2

Answer:

Only 1 and 2 could be in static equilibrium  if an additional force is applied at the center of mass of the rod.

Explanation:

In static equilibrium all the forces acted have an equal and opposite forces.

For rotational motion the sum of torque at any point is equal to zero.

 So, two rods will remain constant even if an additional force is applied at the center mass of the rod  act on the mid point of the rod which can be equate by opposite forces.

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