What does "per second per second" mean?

Answer 1

per second per second of course!

Answer 2

Displacement is a change in position of a moving object measured as distance covered in some dimensional (Meters,Feet etc) units.If this is done relative to time , say , one second the measurement is known as velocity of displcement in mts.,ft., etc. per second.If distances are the same every second the object is said to be moving with a constant velocity or speed every or per second.If there is a change in velocity then we have to also consider how much there is a change in every second which is known as accelerated velocity if increasing or decelerated velocity if slowing down. This secondary variation also reckoned during every second within which an object is moving at a certain rate is expressed as a change in every second within that second or simply 'per second per second.

Answer 3

Every second the rate at which something occurs (such as a speed in feet per second) changes by a set amount. To complete this example acceleration is given as a speed change in so many (feet per second), per second.

Think about it a second.

Answer 4

It means you get a quantity of something in a second and you get it again each addirional second. For example gravity on Earth accelerates objects at 32.2 feet per second. If you want to know how fast it is going you then need to know how long it has been accelerating. If it were 2 seconds for example it would be 2 x 32.2 or 64.4 feet per second.
It accelerates 32.2 per second per 2 seconds
thus 64.4

Answer 5

I've heard this term when refering to an object falling by gravitational pull. 32 feet per second per second means in 1 second object will fall 32 feet, in 2nd second object will fall 64 feet (total 96 in 2 seconds)

Answer 6

per second per second is a obviously a time per time unit

it would be a part of the unit of certain values, most commonly acceleration where the unit would be distance per time per time
like feet per second per second

you probably are more famaliar with a unit of velocity, like ft per second

if you are moving at a speed of 88 feet per second, that is about the same as 60 miles per hour

now, if your velocity is changing (as when you are falling, and the speed downward is getting faster all the time) you can describe how fast your speed is changing by expressing the acceleration, that on earth is about 32 ft per second per second

that means that each second, your velocity is getting 32 feet per second faster

when you first start to fall you are not moving
after one second you are moving at 32 ft per second
(since the acceleration is 32 feet per second every second, or per second)
then after another second, you are moving at 64 ft per second
adding 32 ft per second every second
or 32 ft per second, per second

got it?

Answer 7

The word `per' is used to denote a reference figure or point, in Mathematics, physics, statistics etc.
For example take the word `percent'. This word formed by combining the two words `per' and `cent'. As already said, per indicates a reference and cent means hundred (100). Hence it means ` for every Hundred'. Elaborately, a statistical figure is divided and compared with every hundred. For example 6/600 is 1 percent. i.e. denominator is divisible as six set of hundreds and numerator is accordingly divisible as six set of ones. Finally, comparing each set of numerator and denominator we get one per hundred as result which we usually write as 1 percent because technical words have rich Latin and Greek words that is main hurdle to the students while understanding even simple concepts. Further, find the percent of so obtained percent, i.e. (1/100)/100 = 0.01 percent percent = 1/100^2 = 1/10000= per ten thousand.
Thinking on the same line we can easily understand the use of the phrase per second per second in Physics. Here we try to understand the natural phenomena with respect to unit time. For instance, let an object is changing its place uniformly. When we study is change w.r.t time we call it as velocity. i.e. if it is moving x units of distance per second. We write its velocity as x units per second. Moreover, if its velocity is also changing and we study this change also w.r.t. time we call it as acceleration.
Consequently, (x units per second) per second = (x units per second) / per second =
x (m/s^2) , whence unit of measurement is MKS.
The same method is applicable to many natural phenomena like falling of water and rate of change of volume, rate of change of chemical reaction etc.

Answer 8

ACCELERATION in the case of miles per sec per sec. it is the second derivative of the main measuring item in my case the distance. A bit mathematical but this is what maths are for.

Answer 9

How many times a sine wave cycles from 0 to the highest point-to 0 to the lowest point and back to 0 in a second.

Answer 10

The term "per second per second" is normally used to describe acceleration. Most common is feet per second per second or meters per second per second. For example the acceleration of gravity is 9.8 m/sec^2 (abbreviation for meters per second per second) or 32.2 ft/sec^2. Thiis means that an object in freefall accelerates (or gains velocity) at a rate of 9.8 meters per second each second. After 0.5 seconds of freefall it is going at 4.9 m/sec. After 1 second it is traveling at 9.8 m/sec and so on. The acceleration then with parentheses added for a little more clarity is 9.8 (meters per second) per second.

Answer 11

9.8 m/sec/sec is also written as 9.8 m/sec^2...this is acceleration. It means that a falling object will go from 0 to 9.8 m/sec in the first sec. It will then go to 19.6 m/sec in the 2nd second. It will go to 29.4 m/sec in the 3rd second...and so on. So it should continually keep on accelerating - each second it will be falling FASTER than the previous second by 9.8 m/sec. Obviously there are limits to this (it hits bottom, air resistance, the speed of light, etc.) Note this also: velocity (v) of an accelerating object = a * t t = time it's been accelerating (in sec) a = acceleration rate (in m/sec/sec) So [a * t] = [m/sec/sec]*[sec] = [m/sec] (in unit terms, this is speed or velocity)