Question

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’? [2014]
(a)2ma/g + a (b)2ma/g - a
(c)ma/g + a (d)ma/g - a

Answer 1

Answer:

a) 2ma/ g+a

Explanation:

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