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5Solution :

Condinates of centre of mass after time t is <br> `x_(CM)=(3x)/(4)` <br> <img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/ALN_XII_P2_E01_066_S01.png" width="80%"> <br> `V_(CM)=(dx_(CM))/(dt)=(3)/(4)(dx)/(dt)....(i)` <br> `(dx)/(dt)=V.....(ii)` <br> `V_(CM)=(3)/(4)V=(3)/(4)m//sec=750mm//sec` **WHAT IS COM ?**

**Centre Of Mass Of A System N Discrete Particles**

**Centre Of Mass Of A Continuous Mass Distriubution**

**Centre Of Mass Of Uniform Rod**

**Centre Of Mass Of Uniform Semi Circular Ring**

**Centre Of Mass Of Uniform Semi Circular Disc**

**CENTRE OF MASS OF UNIFORM HEMI-SPHERICAL SHELL**

**CENTRE OF MASS OF SOLID HEMI-SPHERE**

**Addition And Subtraction Principle For Calculating Com**

**Velocity Of Centre Of Mass Of System**