A rod of mass m and length L is hinged at its top end. If the rod is in equilibrium making an angle of 30° with the vertical when a horizontal force F is applied as shown in figure, then the value of F is:

Option 1 -

mg/2

Option 2 -

2mg

Option 3 -

mg/2√3

Option 4 -

√3 mg

4 Views | Posted 3 weeks ago

Asked by Shiksha User

1 Answer

Answered by

Vishal Baghel | Contributor-Level 10

3 weeks ago

Correct Option - 3

Detailed Solution:

Taking torque at top pt, mg sin30°×L / 2 = F cos30°×L ⇒ F = mg / 2√3

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