Physics · JEE

Important Questions: Law of conservation of linear momentum and its applications, equilibrium of concurrent forces for JEE

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The most important Law of conservation of linear momentum and its applications, equilibrium of concurrent forces questions for JEE cover conceptual traps, standard results, and numerical patterns from Law of conservation of linear momentum and its applications, equilibrium of concurrent forces. Goodmarks provides 11+ high-yield MCQs with full solutions.

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Part of Laws of Motion in JEE Main Physics.

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Q1PhysicsUnit 3: Laws of Motion

A machine gun fires a bullet of mass

65 g

with a velocity of

1300 m / s

. The man holding it can exert a maximum force of

169 N

on the gun. The number of bullets he can fire per second will be

Q2PhysicsUnit 3: Laws of Motion

Two bodies

A

and

B

, moving in the same direction collide and after collision, move with the common velocity in the direction of

\mathbf{A}

Q3PhysicsUnit 3: Laws of Motion

A machine gun fires 10 bullets/s, each of mass

10 g

, the speed of each bullet is

20 c m / s,

then force of recoil is

Q4PhysicsUnit 3: Laws of Motion

A particle of mass

m

moving with a velocity

(3 \hat{i}+2 \hat{j}) m s^{-1}

collides with another body of mass

M

and finally moves with velocity

(-2 \hat{i}+\hat{j}) m s^{-1} .

Then during the collision: This question has multiple correct options

Q5PhysicsUnit 3: Laws of Motion

A Diwali rocket is ejecting

0.05 k g

of gases per second at a velocity of

400 m s^{-1} .

The repulsive force on the rocket is

Q6PhysicsUnit 3: Laws of Motion

A student initially at rest on a frictionless frozen pond throws a

2 \mathrm{kg}

hammer in one direction. After the throw, the hammer moves off in one direction while the student moves in the other direction.Then:

Q7PhysicsUnit 3: Laws of Motion

A body subjected to three concurrent forces is found to be in equilibrium. The resultant of any two forces then will be

Q8PhysicsUnit 3: Laws of Motion

Bullets of mass

40 g

each are fired from a machine gun with a velocity of

10^{3} m / s .

If the person firing the bullets experience an average force of

200 N

then the number of bullets fired per minute will be:

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What makes a Law of conservation of linear momentum and its applications, equilibrium of concurrent forces question "important" for JEE?

Important questions test core concepts that appear frequently across JEE Main and Advanced papers — definitions, standard formulas, and classic problem types.

Which subtopics in Laws of Motion are high-weightage?

Key areas include Law of conservation of linear momentum and its applications, equilibrium of concurrent forces. Prioritise these before moving to edge cases.

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Revise 30–50 important MCQs per unit in the last month before JEE. Focus on questions you got wrong at least once.

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