Balancing torque w.r.t. point of suspension mgx=Mg(2ℓ−x)⇒mx=M2ℓ−Mxm=(M2ℓ)x1−M 
y=αx1−C Straight line equation.
A uniform rod A B is suspended from a point X, at a variable distance from x from A, as shown. To make the rod horizontal, a mass m is suspended from…
JEE Main 2018 — Physics Mechanics
2018mcqmedium
A uniform rodAB is suspended from a point X, at a variable distance from x from A, as shown. To make the rod horizontal, a mass m is suspended from its end A. A set of (m,x) values is recorded. The appropriate variable that give a straight line, when plotted, are: 
Official previous-year question
Held on 15 Apr 2018 · Verified 6 Jul 2026.
Options
- A
m,x1
- B
m,x21
- C
m,x
- D
m,x2
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