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A balloon with mass m is descending with an acceleration a (where, a < g) . How much mass could be removed from it, so that its starts moving up with an acceleration a?
  • a)
  • b)
  • c)
  • d)
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
A balloon with mass m is descending with an acceleration a (where, a &...
R-(M-m) g=(M-m) a _(i)
Mg-R=Ma_(ii)

add eqn i and ii

mg=2Ma-ma
m=2Ma/g+a

therefore answer is A
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Community Answer
A balloon with mass m is descending with an acceleration a (where, a &...
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A balloon with mass m is descending with an acceleration a (where, a < g) . How much mass could be removed from it, so that its starts moving up with an acceleration a?a)b)c)d)Correct answer is option 'A'. Can you explain this answer?
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