Example 1 · difficulty 1/5
If the net external force on a system of particles is zero, its centre of mass:
- A. Moves with constant velocity
- B. Must remain at rest
- C. Moves with constant acceleration
- D. Must move in a circle
2020 source guide · Physics
NEET 2020 Physics Rotational Motion Questions
Connect the official 2020 paper with current Physics practice without labelling original previews as PYQs.
250 original questions · explicit provenance labels
PhysicsPlate 24
NeetVellum atlas · fig. physics
24
What to master
centre of mass, torque, angular momentum, rolling and moment of inertia.
Original practice preview
These are current-syllabus NeetVellum questions, shown separately from historical-paper provenance.
Example 2 · difficulty 2/5
A shell at rest explodes into fragments in free space. Neglecting external forces, the centre of mass of all fragments:
- A. Moves with the fastest fragment
- B. Remains at the original position
- C. Moves opposite to the heaviest fragment
- D. Accelerates indefinitely
Example 3 · difficulty 2/5
A 2 kg body moving at 6 m s⁻¹ collides and sticks to a 4 kg body initially at rest. The velocity of their centre of mass before collision is:
- A. 1 m s⁻¹
- B. 3 m s⁻¹
- C. 6 m s⁻¹
- D. 2 m s⁻¹
The evidence-first practice loop
- 1. Verify provenanceOfficial paper and final key before accepting a PYQ label.
- 2. Attempt closed-bookExpose the concept or execution gap before rereading.
- 3. Repair and returnClassify the miss and re-practice after a delay.
Canonical chapter practice
Frequently asked questions
Are these official NEET 2020 Physics Rotational Motion PYQs?
No. The previews are original NeetVellum practice questions. A historical item receives a PYQ label only after its official paper and authoritative final answer key are attached. Use the official archive for the source paper.
How should I use the NEET 2020 paper?
Solve the official paper under its original timing, verify against the final key, classify every miss, and then use the linked current-syllabus practice bank to repair the exposed concept.