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Centre of mass of a two-particle system, centre of mass of a rigid body Revision for JEE

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Revise Centre of mass of a two-particle system, centre of mass of a rigid body by covering every subtopic once, drilling formulas, then solving 15+ timed MCQs with full solutions.

Use this Centre of mass of a two-particle system, centre of mass of a rigid body revision checklist before mocks and the final exam. Reinforce concepts with 15+ syllabus-aligned MCQs on Goodmarks.

Revision checklist

  1. 1.Core idea: Centre of mass of a two-particle system, centre of mass of a rigid body
  2. 2.Relates to other subtopics in Rotational Motion
  3. 3.Centre of mass, torque, angular momentum conservation
  4. 4.Moment of inertia, radius of gyration, axis theorems
  5. 5.Master Centre of mass of a two-particle system, centre of mass of a rigid body definitions and standard results
  6. 6.Solve 20 timed MCQs for Centre of mass of a two-particle system, centre of mass of a rigid body

Syllabus context

Part of Rotational Motion in JEE Main Physics.

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Q1PhysicsUnit 5: Rotational Motion
How far from the midpoint of the stick is the center of mass of the stick-puck combination after the collision?
Q2PhysicsUnit 5: Rotational Motion
Assertion The center of mass of a body may lie where there is no mass. Reason Centre of mass of a body is a point, where the whole mass of the body is supposed to be concentrated.
Q3PhysicsUnit 5: Rotational Motion
A uniform thin rod of length ll is standing on a smooth horizontal surface. A slight disturbance causes the lower end to slip to the smooth surface and the rod starts falling. Based on this information mark the correct option.
Q4PhysicsUnit 5: Rotational Motion
Particle 1 with mass MM has xx position defined by the function x1(t)=x_{1}(t)= 2t(t+3)2 t(t+3) where units are in meters time is in seconds, and are abbreviated in the function. Particle 2 has mass 2M2 M and xx position defined by x(t)=x(t)= (t−1)(t−2)/2(t-1)(t-2) / 2 Considering the system of these two particles, what is the velocity of the center of mass of the system at t=2?t=2 ?
Q5PhysicsUnit 5: Rotational Motion
Find the centre of mass of the letter FF which cut from a uniform metal sheet from point A\mathbf{A}
Q6PhysicsUnit 5: Rotational Motion
A stick is thrown in the air and lands on the ground at some distance from the thrower. The centre of mass of the stick will move along a parabolic path
Q7PhysicsUnit 5: Rotational Motion
At t=0,t=0, the position and velocities of two particle are as shown in the figure. They are kept on a smooth surface and being mutually attracted by gravitational force. Find the position of center of mass at t=2st=2 s
Q8PhysicsUnit 5: Rotational Motion
The motion of centre of mass depends on

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Follow the checklist on this page, revise formulas daily, and attempt mixed MCQs every 2–3 days.

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