Question
Question: A bird weighs 2 kg and is inside a closed cage of 1 kg. If it starts flying, then what is the weight...
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
A
1.5 kg
B
2.5 kg
C
3 kg
D
4 kg
Answer
3 kg
Explanation
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.