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Recent questions tagged centre of mass
+3
votes
1
answer
In the figure (i) an extensible string is fixed at one end and the other end is pulled by a tension T.
asked
Apr 4, 2019
in
JEE
by
kratos
newtons laws of motion
class-11
jee
sound waves
centre of mass
jee mains
friction
laws of motion
+2
votes
1
answer
Statement-1 : Two particles moving in the same direction do not lose all their energy in a completely
asked
Apr 1, 2019
in
Physics
by
kratos
work
forces
quantum mechanics
work energy and power
class-11
jee
kinematics
centre of mass
jee mains
nuclear physics
+2
votes
1
answer
Two blocks A and B of masses 3 m and m respectively are connected by a
asked
Mar 31, 2019
in
JEE
by
kratos
dynamics
motion of system of particles
class-11
jee
rigid bodies
centre of mass
simple harmonic motion
jee mains
laws of motion
+1
vote
1
answer
If all the particles of a system lie in a cube, is it necessary that the center of mass be in the cube?
asked
Mar 31, 2019
in
Class 11
by
kratos
linear momentum
centre of mass
class-11
cbse
+3
votes
1
answer
Distance of the centre of mass of a solid uniform cone from its vertex is z0. If the radius of its base
asked
Mar 30, 2019
in
JEE
by
kratos
centre of mass
rotational motion
jee
jee mains
+3
votes
1
answer
A small ball of mass m starts at a point A with speed vo and moves along a friction less track AB as shown.
asked
Mar 29, 2019
in
JEE
by
kratos
circular motion
momentum
jee
centre of mass
jee mains
nsep
impulse
+2
votes
1
answer
Figure (9-E11) shows a small block of mass m which is started
asked
Mar 29, 2019
in
Class 11
by
kratos
linear momentum
centre of mass
collision
class-11
+2
votes
1
answer
A plank of mass M is placed on a rough horizontal surface. A man of mass m walks on the plank with an acceleration 'a' while
asked
Mar 26, 2019
in
JEE
by
kratos
cbse
class-11
mechanics
jee
kvpy
centre of mass
jee mains
linear momentum
class-12
+3
votes
1
answer
A block moving in air breaks in two parts and the parts separate (a) the total momentum must be conserved
asked
Mar 24, 2019
in
Class 12
by
kratos
class-11
centre of mass
collision
linear momentum
class-12
+2
votes
1
answer
A 500 g block P rests on a frictionless horizontal table at a distance of 400 mm from a fixed pin O .
asked
Mar 24, 2019
in
JEE
by
kratos
class-11
jee
mechanics
centre of mass
jee mains
laws of motion
+2
votes
1
answer
A ball of mass 0.2kg is thrown
asked
Mar 24, 2019
in
JEE
by
kratos
jee
work and energy
class-9
centre of mass
jee mains
laws of motion
+2
votes
1
answer
A parallel beam of particles of mass m moving with velocities v impinges on a wall at an angle θ to its normal.
asked
Mar 23, 2019
in
JEE
by
kratos
irodov
momentum
class-11
jee
centre of mass
optics
jee mains
diffraction of light
impulse
boltzmanns law
kinetic theory of gases
+3
votes
1
answer
A block of mass m starts from rest and slides down a friction less semi circular track from a height h as shown.
asked
Mar 23, 2019
in
JEE
by
kratos
work
jee
energy and power
centre of mass
jee mains
+1
vote
1
answer
Thin threads are tightly wound on the ends of a uniform solid cylinder of mass m. The free ends of the threads
asked
Mar 21, 2019
in
JEE
by
kratos
irodov
electrodynamics
jee
magnetic field
centre of mass
jee mains
dynamics of a solid body
+1
vote
1
answer
A bullet of mass m travelling with speed v hits a disc of mass M and radius R as shown and gets stuck to it. The angular velocity
asked
Mar 20, 2019
in
JEE
by
kratos
work
irodov
momentum
class-11
jee
energy and power
centre of mass
collision
class-12
laws of conservation of energy
jee mains
linear momentum
laws of motion
+1
vote
1
answer
A railroad car of mass M is at rest on frictionless rails when a man of mass m starts moving
asked
Mar 19, 2019
in
Class 11
by
kratos
linear momentum
centre of mass
collision
class-11
+2
votes
1
answer
Maximum speed of the block in motion is –
asked
Mar 18, 2019
in
JEE
by
kratos
centre of mass
jee
jee mains
+2
votes
1
answer
When disc B is brought in contact with disc A, they acquire a common angular velocity in time t.
asked
Mar 18, 2019
in
JEE
by
kratos
cbse
class-11
jee
centre of mass
rotational mechanics
jee mains
linear momentum
+2
votes
1
answer
Two masses m1 and m2 connected by a spring of spring constant k rest on a frictionless surface.
asked
Mar 16, 2019
in
Class 12
by
kratos
irodov
neet
momentum
jee
kvpy
centre of mass
laws of conservation of energy
jee mains
class-12
+1
vote
1
answer
The safety speed of a vehicle on a curve horizontal road is
asked
Mar 16, 2019
in
JEE
by
kratos
cbse
class-11
jee
centre of mass
road safety education
class-10
jee mains
friction
linear momentum
class-12
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