Question

A weightless balloon is filled with water the Apparent weight when waited in water
a)increase
b)decrease
c)zero
d)none​

Answer 1

Explanation:

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C) zero

When this water filled balloon is placed inside water, it displaces equal amount of water which is inside it. So the buoyant force is same that of weight of water filled balloon. So its apparent weight becomes zero.

Answer 2

Answer: When the weightless balloon is filled with water its total weight becomes equal to the weight of the water inside it. When this water filled balloon is placed inside water, it displaces equal amount of water which is inside it. So the buoyant force is same that of weight of water filled balloon. So its apparent weight becomes zero.