Doubt from mechanical properties of solids

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Have i done it correctly?? Uploading: IMG-20200324-WA0008.jpeg...

Its not uploaded , upload it again

Uploading: IMG-20200324-WA0008.jpeg...

First you have drawn wrong diagram 2m has velocity 2v , and wrt center velocity of m will be 2v , wrt center velocity of 2m will be v

Didn't get ...wrt com i did correct i think..i have doubt in my mthd..is my mthd correct

See mass 'm' is moving with velovity v downwards and com with v upwards so wrt com mass m has velocity 2v downwards,similarly mass 2m is moving with velocity 2v upwards ,com is v upwards so wrt com mass 2m is moving with v upwards

Yup! i have done that only...