Welcome to Live View ā Take the tour to learn more
Start Tour
There is currently 1 person viewing this thread.
17 Nov 17
12:09
Joined:
Date Joined:
08 Jan 02
1. Metres per second squared.
Show More
Zimbabwe inflation im sure they said it had experienced 79 billion % on news this morning
1. Metres per second squared.
A measure of acceleration
Acceleration, in physics, is the rate of change of velocity of an object with respect to time. An object's acceleration is the net result of any and all forces acting on the object, as described by Newton's Second Law.[1]
The SI unit for acceleration is metre per second squared (m sā2). Accelerations are vector quantities (they have magnitude and direction) and add according to the parallelogram law.[2][3] As a vector, the calculated net force is equal to the product of the object's mass (a scalar quantity) and its acceleration.
For example, when a car starts from a standstill (zero relative velocity) and travels in a straight line at increasing speeds, it is accelerating in the direction of travel. If the car turns, an acceleration occurs toward the new direction. In this example, we can call the forward acceleration of the car a "linear acceleration", which passengers in the car might experience as a force pushing them back into their seats.
When changing direction, we might call this "non-linear acceleration", which passengers might experience as a sideways force. If the speed of the car decreases, this is an acceleration in the opposite direction from the direction of the vehicle, sometimes called deceleration.[4] Passengers may experience deceleration as a force lifting them forwards.
Mathematically, there is no separate formula for deceleration: both are changes in velocity. Each of these accelerations (linear, non-linear, deceleration) might be felt by passengers until their velocity (speed and direction) matches that of the car.
Simples !
A measure of acceleration
Acceleration, in physics, is the rate of change of velocity of an object with respect to time. An object's acceleration is the net result of any and all forces acting on the object, as described by Newton's Second Law.[1]
The SI unit for acceleration is metre per second squared (m sā2). Accelerations are vector quantities (they have magnitude and direction) and add according to the parallelogram law.[2][3] As a vector, the calculated net force is equal to the product of the object's mass (a scalar quantity) and its acceleration.
For example, when a car starts from a standstill (zero relative velocity) and travels in a straight line at increasing speeds, it is accelerating in the direction of travel. If the car turns, an acceleration occurs toward the new direction. In this example, we can call the forward acceleration of the car a "linear acceleration", which passengers in the car might experience as a force pushing them back into their seats.
When changing direction, we might call this "non-linear acceleration", which passengers might experience as a sideways force. If the speed of the car decreases, this is an acceleration in the opposite direction from the direction of the vehicle, sometimes called deceleration.[4] Passengers may experience deceleration as a force lifting them forwards.
Mathematically, there is no separate formula for deceleration: both are changes in velocity. Each of these accelerations (linear, non-linear, deceleration) might be felt by passengers until their velocity (speed and direction) matches that of the car.
Simples !
The size of the universe !
My head is having difficulty get that in perspective
There's a great channel on you tube: 'David Butler'
He does a series of 18 videos 'How Far away is it' starting off on earth, going to the edge of the visible universe.
.
https://www.youtube.com/watch?v=bcn0ycIHKog ( This is 3/18 as the first 2 are just openers )
Also Does
How Small is it
How fast is it.
All of high BBCesque quality.
My head is having difficulty get that in perspective
There's a great channel on you tube: 'David Butler'
He does a series of 18 videos 'How Far away is it' starting off on earth, going to the edge of the visible universe.
.
https://www.youtube.com/watch?v=bcn0ycIHKog ( This is 3/18 as the first 2 are just openers )
Also Does
How Small is it
How fast is it.
All of high BBCesque quality.
Oh yes, the knighthood, not a suitable replacement for a CRB check.
The OP is a bit like Fr Dougal struggling with getting his head around perspective. I mean, how is it possible to live in three dimensions without being able to get one's head around the concept of acceleration?
PG Tips adverts dumped him but kept the monkey puppet, says it all.
how hard it is for a religious person to deny the absurdity of their religion
In the free world that is. Obviously if you don't live in the free world it makes sense to go along with the charade.
Why they call it Correct Score.
What's wrong with 'Score'.
Do they need to differentiate it from the Wrong Score market, whereby all bets are winners apart from the one which is right. (Which is wrong)
You don't have 'Correct' in any other market name FFS!
What's wrong with 'Score'.
Do they need to differentiate it from the Wrong Score market, whereby all bets are winners apart from the one which is right. (Which is wrong)
You don't have 'Correct' in any other market name FFS!
Should be renamed Final Score in honour of Tim Gudgin.
(Metres per second squared is just a shorthand way of saying something is accelerating at a rate of so many metres per second per second. For instance, the acceleration due to gravity is 9.8 metres per second per second - or 9.8 m sā2. So, if you jumped, say, from your bedroom window to escape Bruce Forsyth, and hit the ground 2 seconds later, your speed when you hit the ground would be 19.6 metres per second - 2 times 9.8.)
(Metres per second squared is just a shorthand way of saying something is accelerating at a rate of so many metres per second per second. For instance, the acceleration due to gravity is 9.8 metres per second per second - or 9.8 m sā2. So, if you jumped, say, from your bedroom window to escape Bruce Forsyth, and hit the ground 2 seconds later, your speed when you hit the ground would be 19.6 metres per second - 2 times 9.8.)
Astrology, i know it works, but i just can't get my head around, all the complexities of the subject.
Why multi millionaires and billionaires need more and more money, when they already have more than they could use in a hundred lifetimes.
death , and why everyone isn't running around screaming.
: ) strange I just scrolled up noticed sfbtw after that posting.
Astrology, i know it works, but i just can't get my head around, all the complexities of the subject.
Me and you both. I thought I knew it all before I went out with a Pisces. The papers get it wrong spot the dog don't believe them.
Me and you both. I thought I knew it all before I went out with a Pisces. The papers get it wrong spot the dog don't believe them.
How is it possible for there to be so many different faces , 7 billion ,
And we are not running out of different faces.
And we are not running out of different faces.
Why we all have strong memories of certain seconds in our life that really were not important at the time but they keep popping up in the mind from time to time.Anyone know why an unimportant event can be remembered so clearly .There must be some reason for it.
lfc1971
How is it possible for there to be so many different faces , 7 billion ,
And we are not running out of different faces.
A lot more than that lfc when you factor in the likes of Corbyn and McDonnell who have a different face for every occasion.
How is it possible for there to be so many different faces , 7 billion ,
And we are not running out of different faces.
A lot more than that lfc when you factor in the likes of Corbyn and McDonnell who have a different face for every occasion.
Plastic surgery - why these stupid bints think they look better.
neo-feminism and neo-liberalism (very often one and the same thing)
Things You Can't Get Your Head Round
Why people say 'round' when they mean 'around'.
Why people say 'round' when they mean 'around'.
I've never got how the world itself works - its round, and centrifugal force etc, but I just cant get my head round the fact that its not like on the map
How western women choose to garb themselves in a black sack and become members of a woman-hating cult like Is Lamb.
By the same token why is Lenny Henry a national treasure?
Musical scales other than basic major, minor etc.
Lennie is still popular because he once did a Jamaican accent that was only marginally better than Jim Davidson's 
Those black caterpillar eyebrows that seem to be popular with the fairer sex.
Whether you could actually get younger by constantly flying round the world east to west.
Why some people with brain damage can play the piano perfectly with no musical training.
ew betting - why? Just admit defeat before you start & pack the game in.
Believing in Adam and Eve, whilst being able to ignore dinosaur bones.
My dislike of Freddie Flintoff without any good reasons....
Matt Dawson, I cannot watch A Question Of Sport anymore with that tool on it.
Global recession
How can everyone be losing money?
How can everyone be losing money?
Ticket and credit reference agencies - they cannot of been invented for the benefit of the customer. Neither existed when I was young and we could quite happily live without both now.
Sue Barker struggling to pronounce Tsitsipas properly.
For those betfairians who like probability, this is a good one:
https://en.wikipedia.org/wiki/Boy_or_Girl_paradox
Mr. Jones has two children. The older child is a girl. What is the probability that both children are girls? (Answer = 1/2)
Mr. Smith has two children. At least one of them is a boy. What is the probability that both children are boys? (Answer = 1/3)
https://en.wikipedia.org/wiki/Boy_or_Girl_paradox
Mr. Jones has two children. The older child is a girl. What is the probability that both children are girls? (Answer = 1/2)
Mr. Smith has two children. At least one of them is a boy. What is the probability that both children are boys? (Answer = 1/3)
Horses still being bought and sold in the defunct currency of guineas and also horses racing for purses of guineas aswell.
sheppy123
28 Feb 19 09:59
How anyone can like "The Big Bang Theory".
Agreed.
**
I always wondered why we anglicise foreign place names.
Wien/Vienna
Praha/Prague
Muenchen/Munich
Moskva/Moscow
Why can't we call them what they're really called?
28 Feb 19 09:59
How anyone can like "The Big Bang Theory".
Agreed.
**
I always wondered why we anglicise foreign place names.
Wien/Vienna
Praha/Prague
Muenchen/Munich
Moskva/Moscow
Why can't we call them what they're really called?
True that. When doing a boy/girl probability example trans now has to be factored in.
Same as the infamous probabilistic "fair coin toss" should now factor in that half way through the action, the 0.0001 chance it will by the end identify as a supermarket trolly token.
Same as the infamous probabilistic "fair coin toss" should now factor in that half way through the action, the 0.0001 chance it will by the end identify as a supermarket trolly token.
Electricity has always baffled me. Electrons travelling through wires because of positive and negative charges (if that has anything to do with it) just doesn't resonate with me. And then magnetism is completely off the understanding scale for me.
Were walking in the Severn valley and there was a shoot on our side. We then heard the echo several seconds later from the other side.
I know the speed of sound thingy, but it was fairly interesting!
I know the speed of sound thingy, but it was fairly interesting!
Post Your Reply
Please login to post a reply.
Wonder
Instance ID: 13539