Question

A bird is in a wire cage which is hanging from a spring
balance . In the first case, the bird sits in the cage and in the
second case, the bird flies about inside the cage. The reading
in the spring balance is
(a) more in the first case
(b) less in first case
(c) unchanged
(d) zero in second case.

Answer 1

Answer:

b. less in first case

Explanation:

when bird sit on the cage it will apply force equal to his weight but when it fly inside the cage it should apply more force than his weight۔