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Two particles P and Q of mass 1 kg and 3...

Two particles P and Q of mass 1 kg and 3 kg respectively start moving towards each other form rest under mutual attraction. What is the velocity of their center of mass ?

Text Solution

Verified by Experts

Mass of first particle P is `m_(1)=1kg`
Mass of second particle Q is
`m_(2)=3kg`
Velocity of particle P `=` Velocity of particle Q but in opposite Q but in opposite direction
`:.` Velocity of centre of mass `v_(cm)=(m_(1)v_(1)+m_(2)v_(2))/(m_(1)+m_(2))`
`=0`
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