Question

A ball is thrown straight up into the air. As it moves upward, its speed ___ by__ each second. As it falls back down, its speed __ by__ each second

Answer 1

Because of gravity it's speed is going to decelerate as it goes up and increase as it goes down.

Answer 2

Decrease by what each second? If you know know the answer.

Answer 3

Well, velocity is m/s and acceleration is m/s^2. so technically is will decrease a m per second s^2.

Answer 4

i was guessing m/s/s
but i was not completely sure thanks :)

Answer 5

In the velocity perspective it will decrease a m per second.

Answer 6

yup correct you are right.

Answer 7

I'm pretty sure they are looking for the acceleration

Answer 8

I love you :) ha Thanks again, i'm absolutely a fan. and you helped me with my first problem!

Answer 9

ahahahah thats funny! thank you!! I appreciate it!

Answer 10

No Problem, plenty more questions, but i can solve most of them. I got moved up from 8th grade biology to High school physics.

Answer 11

that's more than great, very smart. Keep moving up you can always go up

Answer 12

I have one more question do you mind?

Answer 13

go ahead

Answer 14

It's about inertia, from my understandings it is something that will not stop moving unless and force acts upon it.

Answer 15

So if you are driving in the car and your car stops your body would like to keep moving ?unless you stop it or the seat belt does, unless you hit the window or steering wheel.

Answer 16

Inertia or Newton's first law of motion, an object at rest will stay at rest unless acted upon by a force and an object will remain in motion in the same direction and at the same speed unless acted upon by a force

Answer 17

yes, because relative to the car you will go in the same direction and at the same speed so if you hit the brakes and you don't have the seat belt on you will hit the window and it will be painful

Answer 18

So seat belts are created to stop us with an unbalanced force

Answer 19

seat belt work with a pivot a wheel and a pendulum, they are designed to counteract the force, the sudden break forces the pendulum to "bump" the pivot an stop the wheel. it's a locking and unlocking mechanism.

Answer 20

Do you enjoy answering questions? haha
and i apologize ahead of time if i ask many, i get very curious sometimes, and one thing leads to another

Answer 21

Oh I do, I love physics!! It comes in handy all the time. I bore my family to death, heheheh

Answer 22

Ha i wish i could love it, the point of school breaks down the interest. Are you a teacher? and i like the way that you explain it, the way my teacher does makes my head hurt. I can feel the love you have for it, instead all my teacher gives off is word for words things from a book not interest involved. You can only be effective in what you do if you enjoy doing it

Answer 23

Nuu not at all, I'm in college. I understand my professor is not the greatest either, however, I spend a lot of time reading the books. Yeah, physics is all about the theory and concepts.

Answer 24

HaHa Wow, gah I just turned 14, my teachers basically said that since i get all A's without even trying, i need to being in high school levels, it think they just wanted to interrupt my sleep schedule in school haha

Answer 25

They are absolutely right, a challenge would be good for you. I know! that's their hidden evil plan.!! =)