Center of Mass and Collision PYQs - Last 10 Years
JEE Main / Physics / Mechanics / 114 recent questions
PhysicsMechanics2017-2026
Practice 114 JEE Main Physics questions from Center of Mass and Collision. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.
114
PYQs on Page
Physics / Mechanics
2017-2026
Year Range
Based on indexed question metadata
52
Last 5 Years
2022-2026
114
Last 10 Years
2017-2026
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114PYQs
MCQ74.6%
INTEGER25.4%
Difficulty Mix
#1 Medium63
#2 Easy50
#3 Hard1
52 in last 5 years114 in last 10 years
Last 10 Years Center of Mass and Collision Questions
Showing 14 of 114 filtered questions.
1Center Of Mass
A uniform rectangular thin sheet ABCD of
mass M has length a and breadth b, as shown
in the figure. If the shaded portion HBGO is
cut-off, the coordinates of the centre of mass
of the remaining portion will be :-
mass M has length a and breadth b, as shown
in the figure. If the shaded portion HBGO is
cut-off, the coordinates of the centre of mass
of the remaining portion will be :-
MCQ+4 / -12019
2Center Of Mass
A simple pendulum, made of a string of length \(\ell\) and a bob of mass m, is released from a small angle \({{\theta _0}}\). It strikes a block of mass M, kept on a horizontal surface at its lowest point of oscillations, elastically. It
b...
b...
MCQ+4 / -12019
3Center Of Mass
The position vector of the centre of mass \(\overrightarrow r {\,_{cm}}\,\) of an asymmetric uniform bar of negligible area of crosssection as shown in figure is :
MCQ+4 / -12019
4Center Of Mass
An alpha-particle of mass m suffers 1-dimensional elastic collision with a nucleus at rest of unknown mass. It is scattered directly backwards losing, 64% of its initial kinetic energy. The mass of the nucleus is
MCQ+4 / -12019
5Center Of Mass
A man (mass = 50 kg) and his son (mass = 20 kg) are standing on a frictionless surface facing each other. The
man pushes his son so that he starts moving at a speed of 0.70 ms–1 with respect to the man. The speed of the
man with respect to ...
man pushes his son so that he starts moving at a speed of 0.70 ms–1 with respect to the man. The speed of the
man with respect to ...
MCQ+4 / -12019
6Center Of Mass
Three particles of masses 50 g, 100 g and 150 g are placed at the vertices of an equilateral triangle of side
1 m (as shown in the figure). The (x, y) coordinates of the centre of mass will be :
1 m (as shown in the figure). The (x, y) coordinates of the centre of mass will be :
MCQ+4 / -12019
7Center Of Mass
A body of mass 1 kg falls freely from a height of 100 m, on a platform mass 3 kg which is mounted on a spring having spring constant k = 1.25 \(\times\) 106 N/m. The body sticks to the platform and the spring's maximum compression is fou...
MCQ+4 / -12019
8Center Of Mass
A particle of mass m is moving in a straight line with momentum p. Starting at time t = 0, a force F = kt acts in the same direction on the moving particle during time interval T so that its momentum changes from p to 3p. Here k is a consta...
MCQ+4 / -12019
9Center Of Mass
A piece of wood of mass 0.03 kg is dropped from the top of a 100 m height building. At the same time, a bullet of mass 0.02 kg is fired vertically upward, with a velocity 100 ms–1, from the ground. The bullet gets embedded in the wood. Then...
MCQ+4 / -12019
10Center Of Mass
Two particles, of masses M and 2M, moving,
as shown, with speeds of 10 m/s and 5 m/s,
collide elastically at the origin. After the
collision, they move along the indicated
directions with speeds u1 and u2, respectively.
The values of u1 and...
as shown, with speeds of 10 m/s and 5 m/s,
collide elastically at the origin. After the
collision, they move along the indicated
directions with speeds u1 and u2, respectively.
The values of u1 and...
MCQ+4 / -12019
11Center Of Mass
A proton of mass m collides elastically with a particle of unknown mass at rest. After the collision, the proton and the unknown particle are seen moving at an angle of 90o with respect to each other. The mass of unknown particle is :
MCQ+4 / -12018
12Center Of Mass
The mass of a hydrogen molecule is 3.32 \(\times\) 10-27 kg. If 1023 hydrogen molecules strike, per second, a fixed wall of area 2 cm2 at an angle of 45o to the normal, and rebound elastically with a speed of 103 m/s, then the pressure on t...
MCQ+4 / -12018
13Center Of Mass
In a collinear collision, a particle with an initial speed v0 strikes a stationary particle of the same mass. If
the final total kinetic energy is 50% greater than the original kinetic energy, the magnitude of the relative
velocity between ...
the final total kinetic energy is 50% greater than the original kinetic energy, the magnitude of the relative
velocity between ...
MCQ+4 / -12018
14Center Of Mass
Two particles A and B of equal mass M are moving with the same speed \(\upsilon\) as shown in the figure. They collide completely inelastically and move as a single particle C. The angle \(\theta\) that the path of C makes with the X-axis...
MCQ+4 / -12017