Two homogenous spheres A and B of masses m and 2m having radii 2a and a respectively are placed in touch. The distance of centre of mass from first sphere is :
Text Solution
Verified by ExpertsThe correct answer is:
B
we have m 1 r 1 = m 2 r 2
⇒ mr = 2m (3a – r) ⇒ r = 2a
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