Physics · JEE

Elastic and inelastic collisions in one and two dimensions Concepts for JEE

18+ syllabus-aligned questions available

Quick answer

Master Elastic and inelastic collisions in one and two dimensions by understanding definitions, standard results, and typical JEE question patterns — then practise with syllabus-aligned MCQs on Goodmarks.

Build clear conceptual foundations for Elastic and inelastic collisions in one and two dimensions before speed practice. This guide covers what JEE expects and how to test yourself with MCQs.

Concept explainer

Elastic and inelastic collisions in one and two dimensions is a core JEE Main Physics subtopic under Work, Energy and Power. Master the definitions, standard results, and typical MCQ patterns tested in JEE Main and Advanced.

Key points

Understand the definition and scope of Elastic and inelastic collisions in one and two dimensions in the JEE syllabus
Memorise key formulas and standard results linked to Elastic and inelastic collisions in one and two dimensions
Practise 20–40 syllabus-aligned MCQs with step-by-step solutions

JEE tips

Revise Elastic and inelastic collisions in one and two dimensions with a one-page formula sheet before attempting mixed tests
After each practice set, log mistakes specific to Elastic and inelastic collisions in one and two dimensions and reattempt after 48 hours

Common trap

Students often rush Elastic and inelastic collisions in one and two dimensions questions without checking units, sign conventions, or boundary conditions — always verify assumptions before calculating.

Syllabus context

Part of Work, Energy and Power in JEE Main Physics.

Free sample questions

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Q1PhysicsUnit 4: Work, Energy and Power

A cricket ball of mass

150 g

moving with a speed of

126 k m / h

hits at the middle of the bat, held firmly at its position by the batsman. The ball moves straight back to the bowler after hitting the bat. Assuming that collision between ball and bat is completely elastic and the two remain in constant for

0.001 s,

the force that the batsman had to apply to hold the bat firmly at its place would be:

Q2PhysicsUnit 4: Work, Energy and Power

Assertion (A) : The value of coefficient of restitution is independent of the masses and velocities of the colliding bodies but depends on their materials. Reason (R) : Coefficient of restitution is the ratio of the relative velocity of separation or the relative velocity of approach

Q3PhysicsUnit 4: Work, Energy and Power

Water jet is coming out of a hose pipe of diameter

20 \mathrm{cm}

with speed

20 \mathrm{cm} / \mathrm{sec}

It strike a man inelastically. Find the force exerted by water jet on the person.

Q4PhysicsUnit 4: Work, Energy and Power

A plastic ball falls from a height of 4.9 metre and rebounds several times from the floor. What is the coefficient of restitution during the impact with the floor if 1.3 seconds pass from the first impact to the second one?

Q5PhysicsUnit 4: Work, Energy and Power

A ball rebounds after colliding with the floor, then in case of inelastic collision:

Q6PhysicsUnit 4: Work, Energy and Power

A metal ball of mass

2 k g

moving with velocity of

36 k m / h

has a head on collision with a stationary ball of mass 3kg. If after the collision the two balls moves together, the loss in kinetic energy due to collision is (in J)

Q7PhysicsUnit 4: Work, Energy and Power

Ball A strikes with velocity u elastically with identical ball

B

at rest, inclined at an angle of with line joining the centers of two balls. What will be the speed of ball B after the collision:

Q8PhysicsUnit 4: Work, Energy and Power

From the given table, which properties of the undetected third particle can we calculate?

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Frequently asked questions

What concepts in Elastic and inelastic collisions in one and two dimensions are essential for JEE?

Focus on core ideas across Elastic and inelastic collisions in one and two dimensions. JEE tests application, not just memorisation.