# Center of Mass and Collision · Physics · NEET

Start Practice## MCQ (Single Correct Answer)

NEET 2024

Two bodies $$A$$ and $$B$$ of same mass undergo completely inelastic one dimensional collision. The body $$A$$ moves with velocity $$v_1$$ while body ...

NEET 2023 Manipur

A bullet of mass $$m$$ hits a block of mass $$M$$ elastically. The transfer of energy is the maximum, when :

NEET 2023 Manipur

Two particles A and B initially at rest, move towards each other under mutual force of attraction. At an instance when the speed of A is v and speed o...

NEET 2023 Manipur

A $$1 \mathrm{~kg}$$ object strikes a wall with velocity $$1 \mathrm{~m} \mathrm{~s}^{-1}$$ at an angle of $$60^{\circ}$$ with the wall and reflects a...

NEET 2022 Phase 2

The distance covered by a body of mass 5 g having linear momentum 0.3 kg m/s in 5 s is :

NEET 2022 Phase 2

Given below are two statements : One is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : When a fire cracker (rocket...

NEET 2022 Phase 1

A shell of mass m is at rest initially. It explodes into three fragments having mass in the ratio 2 : 2 : 1. If the fragments having equal mass fly of...

NEET 2022 Phase 1

Two objects of mass 10 kg and 20 kg respectively are connected to the two ends of a rigid rod of length 10 m with negligible mass. The distance of the...

NEET 2021

A ball of mass 0.15 kg is dropped from a height 10m, strikes the ground and rebounds to the same height. The magnitude of impulse imparted to the ball...

NEET 2020 Phase 1

Two particles of mass 5 kg and 10 kg respectively are attached to the two ends of a rigid rod of length 1 m with negligible mass.The centre of mass of...

NEET 2019

Body A of mass 4m moving with speed u collides with another body B of mass 2 m, at rest. The collision is head on and elastic in nature. After the col...

NEET 2018

A moving block having mass m, collides with
another stationary block having mass 4m. The
lighter block comes to rest after collision. When
the initial...

NEET 2017

Which of the following statements are correct ?
(1) Centre of mass of a body always coincides with the centre of gravity of the body...

NEET 2016 Phase 2

A rigid ball of mass m strikes a rigid wall at 60o and gets reflected without loss of speed as shown in the figure. The value of impulse imparted by t...

NEET 2016 Phase 2

Two identical balls A and B having velocities of 0.5 m s$$-$$1 and $$-$$0.3 m s$$-$$1 respectively collide elastically in one dimension. The velocit...

NEET 2016 Phase 2

A bullet of mass 10 g moving horizontally with a velocity of 400 m s$$-$$1 strikes a wood block of mass 2 kg which is suspended by light inextensible ...

AIPMT 2015 Cancelled Paper

Two particles of masses m1, m2 move with initial velocities u1 and u2. On collision, one of the particles get excited to higher level, after absorbin...

AIPMT 2015 Cancelled Paper

Two spherical bodies of mass M and 5M and radii R and 2R are released in free space with initial separation between their centres equal to 12R. If the...

AIPMT 2014

The force F acting on a particle of mass m is indicated by the force-time graph shown below. The change in momentum of the particle over the time inte...

AIPMT 2014

A body of mass (4m) is lying in x-y plane at rest. It suddenly explodes into three pieces. Two pieces, each of mass (m) move perpendicular to each oth...

NEET 2013 (Karnataka)

A person holding a rifle (mass of person and rifle together is 100 kg) stands on a smooth surface and fires 10 shots horizontally, in 5 s. Each bullet...

NEET 2013

An explosion breaks a rock into three parts in a horizontal plane. Two of them go off at right angles to each other. The first part of mass 1 kg move...

AIPMT 2012 Mains

Three masses are placed on the x-axis : 300 g at origin, 500 g at x = 40 cm and 400 g at x = 70cm. The distance of the centre of mass from the orgin i...

AIPMT 2012 Prelims

Two spheres A and B of masses m1 and m2 respectively collide. A is at rest initially and B is moving with velocity v along x-axis. After collision B h...

AIPMT 2012 Prelims

Two persons of masses 55 kg and 65 kg respectively, are at the opposite ends of a boat. The length of the boat is 3.0 m and weights 100 kg. The 55 kg ...

AIPMT 2010 Prelims

Two particles which are initially at rest, move towards each other under the action of their internal attraction. If their speeds are v and 2v at any ...

AIPMT 2009

An explosion blows a rock into three parts. Two parts go off at right angles to each other. These two are, 1 kg first part moving with a velocity of 1...

AIPMT 2009

Two bodies of mass 1 kg and 3 kg have position vectors $$\widehat i + 2\widehat j + \widehat k$$ and $$ - 3\widehat i - 2\widehat j + \widehat k$$, re...

AIPMT 2008

A particle of mass m is projected with velocity v making an angle of 45o with the horizontal. When the particle lands on the level ground the magnitud...

AIPMT 2008

A shell of mass 200 gm is ejected from a gun of mass 4 kg by an explosion that generates 1.05 kJ of energy. The initial velocity of the shell is :

AIPMT 2006

A 0.5 kg ball moving with a speed of 12 m/s strikes a hand wall at an angle of 30o with the wall. It is reflected with the same speed at the same angl...

AIPMT 2005

A bomb of mass 30 kg at rest explodes into two pieces of masses 18 kg and 12 kg. The velocity of 18 kg mass is 6 m s$$-$$1. The kinetic energy of the ...

AIPMT 2004

Consider a system of two particles having masses m1 and m2. If the particle of mass m1 is pushed towards the mass centre of particles through a distan...

AIPMT 2003

A stationary particle explodes into two particles of masses m1 and m2 which move in opposite directions with velocities v1 and v2. The ratio of their ...

AIPMT 2002

If kinetic energy of a body is increased by 300% then percentage change in momentum will be :

AIPMT 2002

A rod of length is 3 m and its mass acting per unit length is directly proportional to distance x from one of its end then its centre of gravity from ...

AIPMT 2001

A disc is rolling, the velocity of its centre of mass is vcm. Which one will be correct?