AP EAMCET · PHYSICS · Laws of Motion
A balloon of mass \(M\) descends with an acceleration \(a( < g)\). What mass need to be removed from the balloon, so that it starts ascending with acceleration, \(a\) ?
- A \(\frac{2 M}{(a+g)}\)
- B \(\frac{2 M a}{(a+g)}\)
- C \(\frac{2 M a}{(a-g)}\)
- D \(\frac{2 M a}{(g-a)}\)
Answer & Solution
Correct Answer
(B) \(\frac{2 M a}{(a+g)}\)
Step-by-step Solution
Detailed explanation
The given situation is shown in the figure In above figures, \(M\) is the mass of balloon and \(M^{\prime}\) is the mass remove from the ballon. According to Newton's law of motion in first case, \(M g-F=M a \Rightarrow F=M g-M a\) ...(i) According to Newton's second law of…
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