a parrot is sitting on the floor of a closed glass cage which is in a boys hand .if the parrot starts flying with constant speed ,the boy ll feel the weight of the cage
a)unchanged
b)reduced
c)increased
d)nothing can be said
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2 Answers
Manish Shankar
·2009-05-07 09:22:37
the answer is unchanged :)
Why?
The upthrust is equal to mg+ downthrust on the bird and thus on the air in the opposite way!