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explain the concept of c.o.m. how ti changes before &and after the motion.How it changes before &after collisions. how it is related to different bodies?

explain the concept of c.o.m. how ti changes before &and after the motion.How it changes before &after collisions.  how it is related to different bodies?

Grade:11

1 Answers

Badiuddin askIITians.ismu Expert
147 Points
11 years ago

Dear shanky

answer to all these question requires atleast 2 lecture for detail  answer .here i am just giving you the basic concept.

if any system made of diferent body of mass m1,m2,m3...... and at a distance from the reference point from where COM is measered is x1,x2,x3,,,, respectively  .so COM of the system about that point is defibed as

COM = (m1*x1+m2*x2+m3*x3 +......)/(m1 +m2 +m3) =(∑mixi)/∑mi

now lets consider mass m1 .m2.m3 ..... are moving with velocity V1,V2,V3.....respectively

then the COM is moving =(m1*v1+m2*v2+m3*v3 +......)/(m1 +m2 +m3) =(∑mivi)/∑mi

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Badiuddin

 

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