Rotational Motion Question 144

Question: Three identical spheres, each of mass 1 kg are , touching each other, with their centres on a straight line. If their centres are marked P, Q, R respectively, the distance of centre of mass of the system from P is

Options:

A) PQ+PR+QR3

B) PQ+PR3

C) PQ+QR3

D) PR+QR3

Show Answer

Answer:

Correct Answer: B

Solution:

[b]

xcm=1×0+1×PQ+1×PR1+1+1=PQ+PR3

And

ycm=0



NCERT Chapter Video Solution

Dual Pane