Question

The speed of water at the tap of lower storey is more than that in the upper storey

Answer 1

The correct answer is:

Explanation:

• Any system's net energy is constant.
• The speed with which water flows out of the tap is determined by its kinetic energy.
• In order for the water to move up a building it has to so work against the gravity. Energy gets stored in it potential energy form.
• Potential energy is directly proportional to the height or distance of water from the ground level.
• In the first storey, the total energy of water partially remains in the form of potential energy (as the water rose to a certain height) and the rest remains in the form of kinetic energy (determined by the speed with which the water flows out of the tap).
• In the above storeys, due to increased height, more energy of the water remains in the form of potential energy and less remains in the form of kinetic energy (speed of flow of water through tap decreases).

Answer 2

Explanation:

because the water pressure is greater on the lower storey