Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

System of Particle and Rotational Motion

Question:

A rod of weight W is supported by two parallel knife edges A and B and is in equilibrium in a horizontal position. The knives are at a distance d from each other. The centre of mass of the rod is at distance x from A. The normal reaction on A is :- 

Options:

Wd/x

[W(d-x)]/x

[W(d-x)]/d

Wx/d

Correct Answer:

[W(d-x)]/d

Explanation:

NAd = W(d - x)

⇒ NA = [W(d-x)]/d