Aperson will feel less than the normal weight whenever they are moving upward

False: only when the person accelerating downward

Explanation:

We can measure the "apparent weight" of a person by considering the following situation:

the person is standing on a scale. The normal reaction exerted by the scale (and so, by the floor) is actually what we perceive as "apparent weight". We call this force N (normal force), and we know that it acts upward.

At the same time, there is another force acting on the person: the force of graviity, also called (true) weight, which acts downward, and we label it with W.

Therefore, the equation of the forces on the person is:

where we have chosen upward as positive direction, and where

m is the mass of the person

a is its acceleration

We notice the following observations:

- If the person is moving at constant speed (no matter if upward or downward), the acceleration is zero: a = 0, so the apparent weight is the same as the true weight:

N = W

- If the person is accelerating upward, then , and so

So, the apparent weight will be larger than the true weight

- If the person is accelerating downward, then , and so

So, the apparent weight will be less than the true weight

So, the initial statement is wrong.

hi there!

your question asks at which segment does freezing occur.

since we're talking about water, the freezing point of water will be 32 degrees fahrenheit or below.

hope this ! ~

b.a device that inputs heat into a cool object