Rotational Motion is one of the most conceptual yet scoring chapters in NEET Physics. Many students find it difficult, but if you practice the right set of Physics Rotational Motion PYQs, the chapter becomes highly predictable. Most questions revolve around torque, moment of inertia, angular momentum, and rolling motion. That’s why mastering Physics Rotational Motion PYQs is essential for improving problem-solving speed and accuracy.

This article provides quick notes + 10 high-quality Physics Rotational Motion PYQs with detailed solutions for fast and effective revision.

Physics Rotational Motion Quick Notes

Before solving Physics Rotational Motion PYQs, revise these key formulas:

• Torque: $\tau = rF\sin\theta$τ=rFsinθ
• Angular Momentum: $L = I\omega$L=Iω
• Moment of Inertia: $I = \sum mr^2$I=∑mr2

$\tau = I\alpha$τ=Iα

• Rotational KE: $K = \frac{1}{2}I\omega^2$K=21​Iω2
• Rolling Motion: $v = \omega R$v=ωR

These formulas form the base of most Physics Rotational Motion PYQs.

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Top 10 Physics Rotational Motion PYQs (With Solutions)

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1) Torque calculation

A force of 10 N acts at 0.5 m perpendicular to rod.

Solution

$$\tau = rF = 0.5 \times 10 = 5\text{ Nm}$$τ=rF=0.5×10=5 Nm

Answer: 5 Nm

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2) Angular acceleration

A torque of 20 Nm acts on body with $I=5$I=5.

Solution

$$\alpha = \frac{\tau}{I} = \frac{20}{5} = 4\text{ rad/s}^2$$α=Iτ​=520​=4 rad/s2

Answer: 4 rad/s²

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3) Rotational KE

Disc with $I=2$I=2, $\omega=5$ω=5.

Solution

$$K = \frac{1}{2} \times 2 \times 25 = 25\text{ J}$$K=21​×2×25=25 J

Answer: 25 J

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4) Angular momentum

Mass 2 kg moving in circle (r=2 m, v=3 m/s)

Solution

$$L = mvr = 2 \times 3 \times 2 = 12$$L=mvr=2×3×2=12

Answer: 12 kg m²/s

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5) Rolling motion

Wheel radius 0.5 m, angular velocity 10 rad/s.

Solution

$$v = \omega R = 5\text{ m/s}$$v=ωR=5 m/s

Answer: 5 m/s

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6) Ring vs disc inertia

Which has greater moment of inertia?

Solution

Ring: $MR^2$MR2, Disc: $\frac{1}{2}MR^2$21​MR2

Answer: Ring

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7) KE in rolling

Total KE = translational + rotational.

Solution

$$K = \frac{1}{2}mv^2 + \frac{1}{2}I\omega^2$$K=21​mv2+21​Iω2

Concept Answer

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8) Conservation of angular momentum

Radius decreases → angular velocity?

Solution

$$L = I\omega = constant$$L=Iω=constant

Answer: Angular velocity increases

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9) Torque zero condition

When is torque zero?

Solution

When line of action passes through axis.

Answer: r = 0

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10) Relation of linear and angular

$$v = \omega R$$v=ωR

Answer: Direct relation

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Quick Revision for Physics Rotational Motion PYQs

To master Physics Rotational Motion PYQs, remember:$$\tau = rF$$τ=rF $$\tau = I\alpha$$τ=Iα $$L = I\omega$$L=Iω $$K = \frac{1}{2}I\omega^2$$K=21​Iω2 $$v = \omega R$$v=ωR

These formulas solve most Physics Rotational Motion PYQs quickly.

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Most Important NEET Patterns

From repeated trends in Physics Rotational Motion PYQs, questions are usually from:

• Torque and angular acceleration
• Moment of inertia comparison
• Rolling motion
• Angular momentum conservation
• Rotational kinetic energy

Practicing these Physics Rotational Motion PYQs ensures strong command over the chapter.

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Final Takeaway

The key to solving Physics Rotational Motion PYQs is understanding the analogy with linear motion. Once you connect force ↔ torque and mass ↔ moment of inertia, most problems become straightforward.

Revise these Physics Rotational Motion PYQs twice—once for concept clarity and once for speed—and this chapter will no longer feel difficult.

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FAQ – Physics Rotational Motion PYQs

1. Why are Physics Rotational Motion PYQs important for NEET?

They help identify repeated patterns and improve conceptual clarity.

2. Which topics are most important?

Torque, moment of inertia, rolling motion, and angular momentum.

3. Is rotational motion difficult?

Initially yes, but practicing Physics Rotational Motion PYQs makes it manageable.

4. How many questions come from this chapter?

Usually 1–2 in NEET.