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In the situation shown, the tension in t...

In the situation shown, the tension in the string is 22N. What is m (in kg) ?

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The correct Answer is:
3
Let '2m' is moving down and m towards right
`rArr 2mg -T =2ma.....(i)`
`(T-0.1xx10xxm=ma).....(ii)`
Eliminate 'a'
`2mg -3T+2xx0.1 xx 10 m =0`
`3T=20 m +2m`
`3xx22=22m`
`rArr m=3kg `
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