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Physics - Center of Mass Momentum and Collision

Practise 15 BITSAT previous year questions on Center of Mass Momentum and Collision, compiled from papers spanning 2009 to 2024. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty BITSAT tests.

Center of Mass Momentum and Collision has been asked in 11 of the 16 years of BITSAT papers analysed (2009–2024), with 15 questions in all. 47% of them were easy, 33% moderate and 20% tough. Most of its questions came from 2024, with 2 questions that year. In the last three years (2022–2024) it had 4 questions across 4 papers, about 1 per paper.

The chapter's 5 topics are not weighted equally: Collisions (5 questions, 33%), momentum (5 questions, 33%), and Centre of mass of discrete particles (3 questions, 20%) have been asked the most. Collisions has also led over the last five years, with 2 questions. Centre of mass of discrete particles has produced the most tough questions (1).

  1. 1Two bodies of mass 1 kg and 3 kg have position vectors and respectively. The magnitude of position vector of centre of mass of this system w2024 (Memory Based Paper 2)Centre of mass of discrete particles
  2. 2A ball falling freely from a height of , hits a horizontal surface. If , then the ball will hit the surface, second time after2024 (Memory Based Paper 3)Collisions
  3. 3A particle of mass moving with velocity collides with a stationary particle of mass . After collision, they stick together and continue to m2023 (Memory Based Paper 1)Collisions
  4. 4Two bodies are having kinetic energies in the ratio . If they have same linear momentum, the ratio of their masses respectively is:2023 (Memory Based Paper 2)momentum
  5. 5Three bricks each of length and mass are arranged as shown from the wall. The distance of the centre of mass of the system from the wall is2021Centre of mass of continuous mass distribution
  6. 6A nucleus splits into two nuclear parts which have their velocity ratio equal to What will be the ratio of their nuclear radius?2020momentum
  7. 7An object of mass 5 kg is projected with a velocity 20 m s - 1 at an angle 60 , to the horizontal. At the highest point of its path, the pro2018Centre of mass of discrete particles
  8. 8A trolley having mass of 200 kg moves with uniform speed of 36 kmh - 1 on a frictionless track. A child of mass 20 kg runs on the trolley fr2018Impulse
  9. 9Consider elastic collision of a particle of mass m moving with a velocity u with another particle of the same mass at rest. After the collis2016Collisions
  10. 10A neutron moving with speed v makes a head on collision with a hydrogen atom in ground state kept at rest. The minimum kinetic energy of the2015Collisions
  11. 11A rifle man, who together with his rifle has a mass of , stands on a smooth surface and fires 10 shots horizontally. Each bullet has a mass 2014momentum
  12. 12A man of mass . is standing on a platform of mass . which is kept on a smooth ice surface. If the man starts moving on the platform with a s2012momentum
  13. 13A spring is compressed between two toy carts of mass and . When the toy carts are released, the springs exert equal and opposite average for2010momentum
  14. 14A system consists of three particles, each of mass and located at (1,1),(2,2) and (3,3) . The co-ordinates of the centre of mass are2010Centre of mass of discrete particles
  15. 15A particle of mass moving eastwards with a speed collides with another particle of the same mass moving north-wards with the same speed . Th2009Collisions

Frequently Asked Questions

1.How many questions are available for Center of Mass Momentum and Collision?

This chapter includes 15 questions compiled from BITSAT papers spanning 2009 to 2024.

2.Are these questions only from BITSAT, or from other exams too?

These are BITSAT questions specifically for the Center of Mass Momentum and Collision chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.

3.Is Center of Mass Momentum and Collision an important chapter for BITSAT Physics?

Center of Mass Momentum and Collision has appeared in 11 of the 16 years of BITSAT papers covered here, with 15 questions across 13 papers - about one per paper it appears in.

4.What is the difficulty level of Center of Mass Momentum and Collision questions in BITSAT?

Of the 15 questions analysed for this chapter, 47% are easy, 33% moderate and 20% tough. 2024 had the most, with 2 questions.

5.Which topics in Center of Mass Momentum and Collision should I focus on?

These topics have carried the most weightage in Center of Mass Momentum and Collision:

  • Collisions - 5 questions (33%)
  • momentum - 5 questions (33%)
  • Centre of mass of discrete particles - 3 questions (20%)
  • Centre of mass of discrete particles has produced the most tough questions (1).
6.Is Center of Mass Momentum and Collision's weightage in BITSAT going up or down?

Across all 13 papers analysed, Center of Mass Momentum and Collision has averaged about 1.2 questions per paper. In the last three years (2022–2024), that average has stayed about the same, at about 1.0 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.