Question

why does a mug full of water feel light inside water?
A. Because of buoyant force
B. Because of gravitational force
C. Because of an increase in velocity
D. Because of its kinetic energy

Answer 1

Hint: We may comprehend the given situation using the Archimedes principle. When a body is submerged in water or other fluid at rest, Archimedes' principle states that it will experience an upward force. Gravitational force always acts in the downward direction.

Complete answer:
Water is made up of tiny molecules with covalent connections that bind them together. When a body is entirely or partially submerged in water, Archimedes' principle states that a force acts on it in an upward direction. The buoyant force is the name given to this force.When a body is submerged in water, it displaces the same amount of water equal to its volume. As a result, the buoyant force is equal to the weight of the water that the submerged body has displaced.

As a result, when a mug full of water is submerged in water, it displaces a volume of water similar to its own volume. So it is subjected to buoyant force, which is upward in direction, resulting in a net force on the mug full of water inside the water equal to the force due to actual weight minus buoyant force acting on the body. Therefore, a mug full of water feels light inside.

Hence, option A is the correct answer.

Note: The buoyant force is caused by gravity, however it works in an upward direction. Fluid pressure rises with depth due to the weight (gravitational) of the fluid above.A submerged item is subjected to a force proportional to its depth as the pressure rises.