A boy carries a fish in one hand and a bucket (not full) of water in t...
Buoyant force on fish due to water will be equal and opposite to the force on water by fish.
These two forces are internal forces for the fish bucket system.
Hence, they will not affect the weight the boy carries.
View all questions of this test
A boy carries a fish in one hand and a bucket (not full) of water in t...
As fish in 1 hand and bucket is in another.
so, here the force called buoyant force will act on fish due to water and will be equal and opposite to the force on water by fish. thus 2 forces are internal forces so it will remain same and will not affect the weight that boy carries.
option C is correct!
A boy carries a fish in one hand and a bucket (not full) of water in t...
Explanation:
Weight of the fish:
When the boy is carrying only the fish in his hand, the weight of the fish is acting downwards due to gravity. Let's assume the weight of the fish is F1.
Weight of the water:
When the boy is carrying only the bucket of water in his hand, the weight of the water is acting downwards due to gravity. Let's assume the weight of the water is F2.
Combined weight:
When the boy carries both the fish and the bucket of water in his hands, the weight of the fish and the weight of the water act downwards due to gravity. The combined weight is the sum of the weights of the fish and the water. Let's assume the combined weight is F3.
When the fish is placed in the bucket:
When the fish is placed in the bucket of water, it will displace some water, causing an increase in the weight of the water. However, the weight of the fish remains the same.
Weight of the fish:
The weight of the fish is still the same as before, as it does not change when it is placed in the bucket of water.
Weight of the water:
When the fish is placed in the bucket of water, it displaces some water. The weight of the displaced water is equal to the weight of the fish. Therefore, the weight of the water increases by the weight of the fish when the fish is placed in the bucket.
Combined weight:
The combined weight is the sum of the weight of the fish and the weight of the water. Since the weight of the fish remains the same and the weight of the water increases by the weight of the fish, the combined weight is still the same as before.
Therefore, the weight carried by the boy is the same as before when he places the fish in the bucket of water.
To make sure you are not studying endlessly, EduRev has designed Class 11 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 11.