Which person is weightless?

a. a child in the air as she plays on a trampoline.
b. an astronaut on the moon.
c. a scuba diver exploring a deep-sea wreck.

Option (b) is the correct answer.

Explanation:

The force of gravity acting on an object helps in determining the weight of an object. But a place where there will be no gravity or have zero gravitational pull then it means the person will be weightless.

For example, force of gravity on moon is zero which means any object or person on moon will be weightless.

On the other hand, when a child is in the air as she plays on a trampoline then it means gravitational pull form the earth is acting on it. So, it will definitely has some weight.

Similarly, a scuba diver exploring a deep-sea wreck is under the ground where there will be force of gravity. Hence, it will also have some weight.

Thus, we can conclude that an astronaut on the Moon is the person who is weightless.

this is poiselle's equation from fluid mechanic in physics. mech eng

higher potential

explanation:

because it is in a high speed so it must move into a of high potential