A balloon with mass m is descending down with an acceleration a (where a < g). How much…
Physics · NEET · NTA Exams — Laws of Motion
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)
Answer
(B) 2 ma /(g + a )
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