1.

A bird is in a wire cage hanging from a spring balance. The reading of the balance is taken when the bird is flying about in the cage, and when the bird is at rest in the cage. The first reading will be

Answer»

much greater than the second
greater than the second
LESS than the second
same as the second

Solution :When the bird is flying in a wire CAGE, the AIR pressed by the wings of the bird will go out of cage, hence the spring balance will RECORD less READING


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