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Two blocks of masses m(1) and m(2) being...

Two blocks of masses `m_(1) and m_(2)` being connected with a light spring of stiffness k are driven with forces `F_(1) and F_(2)` on a smooth horizontal plane.

A

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

B

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

C

`(1)/(2)((F_(1))/(m_(1))+(F_(2))/(m_(2)))`

D

decided by the stiffness of the spring

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The correct Answer is:
A
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