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Two masses of 10 kg and 20 kg are connec...

Two masses of 10 kg and 20 kg are connected with an inextensible string passing over two smooth pulleys as shown in the figure. The acceleration of 20 kg mass will be `:`

A

`10 //3 m//s^(2)`

B

`20 //3 m//s^(2)`

C

` 40 //9 m //s^(2)`

D

`10 m//s^(2)`

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