Physics · JEE

Centre of mass of a two-particle system, centre of mass of a rigid body Previous Year Questions for JEE

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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

l

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

M

has

x

position defined by the function

x_{1}(t)=

2 t(t+3)

where units are in meters time is in seconds, and are abbreviated in the function. Particle 2 has mass

2 M

and

x

position defined by

x(t)=

(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 ?

Q5PhysicsUnit 5: Rotational Motion

Find the centre of mass of the letter

F

which cut from a uniform metal sheet from point

\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

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=2 s

Q8PhysicsUnit 5: Rotational Motion

The motion of centre of mass depends on

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PYQs reveal recurring concepts, common traps, and the difficulty level JEE expects. Solving them builds exam temperament and time management.

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Our bank includes exam-style MCQs aligned with JEE Main Physics syllabus for Centre of mass of a two-particle system, centre of mass of a rigid body, covering the same topics as previous year papers.

How should I use PYQs for Rotational Motion?

Solve timed sets, review every explanation, note weak subtopics, then revisit with focused practice on Goodmarks.

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