| ⇦ | 
| ⇨ |
Two bodies of mass 1 kg and 3 kg have positive vectors i + 2j + k and -3i -2j + k respectively. The centre of mass of this system has a position vector:
Options
(a) -2i – j + k
(b) 2i – j – 2k
(c) -i + j + k
(d) -2i + 2k
Correct Answer:
-2i – j + k
Explanation:
The position vector of othe centre of mass of two particle system is given by
R⃗ = m₁R⃗₁ + m₂R⃗₂ / (m₁ + m₂)
= 1/4 [-8i -4j + 4k] = -2i -j + k
Related Questions: - If the binding energy of the nucleon in ₃⁷Li and ₂⁴He nuclei are 5.60 MeV and 7.06 MeV
- Thomson coefficient of a conductor is 10 µV/K. Its two ends are kept
- The cylindrical tube of a spray pump has radius R, one end of which has n fine holes,
- When a piece of metal is illuminated by a monochromatic light of wavelength λ,
- An unpolarised beam of intensity I₀ falls on a polaroid. The intensity
Topics: Motion of system of Particles and Rigid Body
(73)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If the binding energy of the nucleon in ₃⁷Li and ₂⁴He nuclei are 5.60 MeV and 7.06 MeV
- Thomson coefficient of a conductor is 10 µV/K. Its two ends are kept
- The cylindrical tube of a spray pump has radius R, one end of which has n fine holes,
- When a piece of metal is illuminated by a monochromatic light of wavelength λ,
- An unpolarised beam of intensity I₀ falls on a polaroid. The intensity
Topics: Motion of system of Particles and Rigid Body (73)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply