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Two masses m1 and m2 (m1gtm2) are connec...

Two masses `m_1` and `m_2` `(m_1gtm_2)` are connected by massless flexible and inextensible string passed over massless and frictionless pulley. The acceleration of centre of mass is

A

`((m_(1)-m_(2))/(m_(1)+m_(2)))^(2)g`

B

`(m_(1)-m_(2))/(m_(1)+m_(2))g`

C

`(m_(1)+m_(2))/(m_(1)-m_(2))g`

D

zero

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A
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