Laws Of Motion Question 91

Question: A bird weighs 2 kg and is inside a closed cage of 1 kg. If it starts flying, then what is the weight of the bird and cage assembly[AFMC 1997]

Options:

A) 1.5 kg

B) 2.5 kg

C) 3 kg

D) 4 kg

Show Answer

Answer:

Correct Answer: C

Solution:

When the bird flies, it pushes air down to balance its weight.

So the weight of the bird and closed cage assembly remains unchanged.



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