Home
Class 11
PHYSICS
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`
Promotional Banner

Topper's Solved these Questions

  • MOTION OF SYSTEM OF PARTICLES AND BODIES

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT QUESTIONS & ANSWER (MULTIPLE CHOICE QUESTIONS)|178 Videos

  • MOTION OF SYSTEM OF PARTICLES AND BODIES

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT QUESTIONS & ANSWER (VERY SHORT ANSWER QUESTIONS)|24 Videos

  • MOTION OF SYSTEM OF PARTICLES AND BODIES

    PREMIERS PUBLISHERS|Exercise TEXTBOOK QUESTIONS & ANSWERS (CONCEPTUAL QUESTIONS)|16 Videos

  • LAW OF MOTION

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT QUESTIONS & ANSWERS (VI Numerical Problems)|62 Videos

  • NATURE OF PHYSICAL WORLD AND MEASUREMENT

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT QUESTIONS & ANSWERS (III. Short Answer Questions.)|24 Videos