A) 24 N
B) 25 N
C) 26 N
D) 27 N
Correct Answer: B
Solution :
Since the cage is closed and we can treat bird, cage and the air as a closed (isolated) system. In this condition the force applied by the bird on cage is an internal force, due to this the reading of spring balance will not change.You need to login to perform this action.
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