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AIPMT 2014 Physics and Chemistry Paper

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Question : 6

Total: 90

A balloon with mass ' m ' is descending down with an acceleration 'a' (where a<g ). How much mass should be removed from it so that it starts moving up with an acceleration ' a ' ?

‌
2ma
g+a
‌
2ma
g−a
‌
ma
g+a
‌
ma
g−a

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