AP EAMCET · PHYSICS · Center of Mass Momentum and Collision
The sum of moments of all the particles in a system about its center of mass is always______
- A Minimum
- B Zero
- C Maximum
- D Infinite
Answer & Solution
Correct Answer
(B) Zero
Step-by-step Solution
Detailed explanation
Assume a system of three particles having mass m1, m2 and m3 located at a distance of r1, r2 and r3 from the centre of mass. If centre of mass of the system is at origin, r→=m1r1→+m2r2→+m3r3→m1+m2+m3=0 then,…
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