- published: 25 Jun 2016
- views: 54730
In everyday use and in kinematics, the speed of an object is the magnitude of its velocity (the rate of change of its position); it is thus a scalar quantity. The average speed of an object in an interval of time is the distance travelled by the object divided by the duration of the interval; the instantaneous speed is the limit of the average speed as the duration of the time interval approaches zero.
Like velocity, speed has the dimensions of a length divided by a time; the SI unit of speed is the metre per second, but the most common unit of speed in everyday usage is the kilometre per hour or, in the US and the UK, miles per hour. For air and marine travel the knot is commonly used.
The fastest possible speed at which energy or information can travel, according to special relativity, is the speed of light in a vacuum c = 7008299792458000000♠299792458 metres per second (approximately 7008299722222222222♠1079000000 km/h or 7008299963840000000♠671000000 mph). Matter cannot quite reach the speed of light, as this would require an infinite amount of energy. In relativity physics, the concept of rapidity replaces the classical idea of speed.
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Timmy's walking tall with his best laid plans
Taking Penny Lane to the sixth grade dance
And he's bringing flowers
He's looking pretty sharp in his dad's red tie
Gonna hold her hand if he's not too shy
He's bringing flowers
Don't every girl love flowers?
Looking 'round for Penny for the slow song at the end
And he found her looking pretty in the arms of his best friend
They were dancing in slow ow ow mo, slow ow ow mo, slow ow ow ow mo
Slow ow ow mon, slow ow ow mo, slow ow ow ow mo
Jimmy's losing sleep 'cause he thinks it's time
Ever since he met her at the five 'n dime
He's been seeing Jenny
He's waiting for the moment when he makes his move
Had to plan it out 'cause he's not real smooth
But he holds her steady
Aint every boy born ready?
Standing on the front porch; he's about to be the man
I swear he had it 'til her mom pulled up in the mini van up the driveway in
Slow ow ow mo, slow ow ow mo, slow ow ow mo
Slow ow ow mo, slow ow ow mo, slow ow ow mo
Like a car crash at the race
A pie right to the face
Falling down the stairs
Finding out that she cares
Don't it last forever when you never saw it coming at all?
You better take a chair and prepare for the wrecking ball, coming at you in
Slow ow ow mo, slow ow ow mo, slow ow ow mo