Question

Why doesn't an object thrown in an upward direction fall the same distance in each time interval as it descends toward Earth?

Answer 1

because it is falling toward the earth

because it is heavier than the air it is falling through

because it is accelerating

none of the above

Answer 2

Gravity accelerates it as it falls, so that it gets faster and faster (greater distance in each time interval).

Answer 3

Okay, that makes sense. So even though it it isnt moving forward, it still means it is accelarating. Right/

Answer 4

Hm, it would be moving downward, or toward the earth as it "descends" in this question. Is that what you mean?

Answer 5

I think so, so this doesnt mean the air is getting heavier, its that the more it falls, the quicker it might go each time because the force of gravity is pulling it. okay i understand it but i dont know how to explain it... i tried :)

Answer 6

Right! It is getting faster because the force of gravity is still pulling on it, and accelerating it. :)

Answer 7

Thank you Joannablackwelder! that helped me more than you know!

Answer 8

No worries. :) Glad I could help!

Answer 9

Okay I have one more question that I am having trouble understanding. Consider a girl that has a mass of 55.0 kg and is standing on the floor, how much supporting force does the floor have?

I am going to guess that the answer is, at least 55 kg up, according to what i have learned. Do you think so

Answer 10

No, but that is close.

Answer 11

Force = ma
or force = mass * acceleration

Answer 12

The acceleration of the girl is the acceleration of gravity. :)

Answer 13

Is it 539 up?

Answer 14

i think

Answer 15

Yes, 539 N up. :)

Answer 16

Because a Newton is kg*m/s^2

Answer 17

YAY!

Answer 18

:D