A square Lamina OABC of length 10 cm is pivoted at 'O'. Forces act...

A square Lamina OABC of length 10 cm is pivoted at 'O'. Forces act at Lamina as shown in figure. If Lamina remains stationary, then the magnitude of F is :

Options

A20 N
B0 (zero)
C10 N
D $10 \sqrt{2} \mathrm{~N}$

Correct answer

C. 10 N

Step-by-step solution

Since the lamina is equilibrium.

\therefore \mathrm{F}_{\mathrm{net}}=0 \& \tau_{\mathrm{net}}=0

\mathrm{T}_{\mathrm{o}}=10 \ell-\mathrm{F} \ell \Rightarrow \mathrm{F}=10 \mathrm{~N}

Practice Rotational Motion on Quantrex Academy →

More from Rotational Motion

Consider a large disk of radius R and two smaller disks, each of radius r = R/50 , lying… JEE Advanced 2026 A solid cylinder of radius R rolls without slipping with a center of mass speed v_0 =… JEE Advanced 2026 List-I shows four planar structures made of uniform solid rods each of mass m and length… JEE Advanced 2026 Passage: A uniform circular disk of radius 0.2 m and mass 1 kg is pivoted at its top… JEE Advanced 2026 Passage: A uniform circular disk of radius 0.2 m and mass 1 kg is pivoted at its top… JEE Advanced 2026 A solid cylinder having radius R and length L is slipping on a rough horizontal plane. At… JEE Main 2026 A solid sphere ( A ) of mass 5m and a spherical shell ( B ) of mass m , both having same… JEE Main 2026 A solid sphere of radius 4 cm and mass 5 kg is rotating (rotation axis is passing through… JEE Main 2026 Full Rotational Motion list All JEE Main PYQs