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Motion Of Bodies In Contact - Practice Questions & MCQ

Edited By admin | Updated on Sep 18, 2023 18:34 AM | #JEE Main

Quick Facts

  • Motion of Block in Contact is considered one the most difficult concept.

  • 6 Questions around this concept.

Solve by difficulty

QuestionEASY

A block of mass m is connected to another block of mass  M  by a spring ( massless ) of spring constant  K . The blocks are kept on a smooth horizontal plane.Initially the blocks are at rest and the spring is unstretched   Then a constant force  F  starts acting on the block of mass  M  to pull it. Find the force of the block of mass  m.

 

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Concepts Covered - 1

Motion of Block in Contact

Use\:F_{net}=ma

a=\frac{F_{net}}{m_{1}+m_{2} }

  1. When 2 Blocks are in Contact

            

     

 

F-f=m_{1}a

f=m_{2}a

a=\frac{F}{m_{1}+m_{2}}

f=\frac{m_{2}F}{m_{1}+m_{2}}

  1. When 3 Blocks are in Contact

         

Use\:F_{net}=ma

a=\frac{F}{m_{1}+m_{2}+m_{3}}


f_{1}=\frac{(m_{2}+m_{3})F}{m_{1}+m_{2}+m_{3}}

f_{2}=\frac{m_{3}F}{m_{1}+m_{2}+m_{3}}

 

 

 

 

 

 

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Motion of Block in Contact

Study other Related Concepts

Motion Of Bodies In Contact Current Topic

Inertia
Forces
Common Forces In Mechanics
Equilibrium Of Concurrent Forces
Newton’s First Law Of Motion
Linear Momentum
Newton's Laws Of Motion
Acceleration Of Block On Horizontal Smooth Surface
Acceleration Of Block On Smooth Inclined Plane
Motion Of Bodies In Contact

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