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Grade: 10
        
Can you think of variable-mass systems other than the examples given in the text?
5 years ago

Answers : (1)

Jitender Pal
askIITians Faculty
365 Points
							Consider a balloon filled with air and held from the end such that no air leaks out through it. Now, release the end of the balloon to allow the air to leak out thereby imparting momentum to the balloon.
The balloon and the air inside the balloon form a variable-mass system. This can be seen from the fact that as the air leaks out, the amount of air inside the balloon decreases. Therefore the situation is similar to rocket propulsion, except that instead of the burning fuel, the air leaks out by imparting momentum to balloon.
5 years ago
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  • NCERT Solutions
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  • Previous Year Exam Questions


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