Two Point masses of 4 kg and 7kg
are in motion along with the same
straight line with Velocities 2m/s and
3 m/s respectively . Find the speed of
the centre of mass Of the system
when both the masses are moving
i)in same direction 2) in opposite
direction
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Answer:
centre of mass=mU1+mU2
______________
Total mass
1. centre of mass=4×2+7×3
-----------------
4+7
=29/11=2.63
2.centre of mass =mU1-U2m
----------------
total mass
=8-21\7=-13/11=-1.18
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