Maths Is So Fun!

Monday, March 23, 2009

Definition of speed in case some of you are pure 'SOTONGS' or "retards" T_T

Speed is the rate of motion, or equivalently the rate of change of distance.

Speed is a scalar quantity with dimensions length/time; the equivalent vector quantity to speed is velocity. Speed is measured in the same physical units of measurement as velocity, but does not contain the element of direction that velocity has. Speed is thus the magnitude component of velocity.

In mathematical notation, if an object traveling at constant speed moves a distance $x$ in time $t$ , its speed, denoted by $v$ , is simply given by

$v = \frac {x}{t}$ .

In many situations, objects do not move at a constant speed. For example, if a car goes 120 miles in 4 hours, its average speed during that time is 30 miles per hour, but its instantaneous speed may have varied. For an object which is accelerating or decelerating, the instantaneous speed is given by

$v = \left\frac {dx}{dt}\right$ ,

where $d x$ is the distance it travels in a very short period of time $d t$ . If the object travels a total distance $x$ in time $t$ , its average speed over that time is given by

$\bar{v} = \left\frac {x}{t}\right$ .

Now a quiz.

5/5 Print it out? Calculator are provided....

Prizes Will be given......While stocks Last! MUAHAHAHAHHAHAHAHAHHA

1) What is the value of (1x2x3x4x5...............x10x11..............x100000x1000001x999999)/(2x4x6.....................x 99 *u)

When u is a prime.

2) What is the value is (1!*2!*3!*4!*5!*..................................................................100!)??????

3) What is km^{10 =_____ Mm?}

4) A rocket leaves the space station at the 4pm and a space shuttle leaves the space station at 5pm . How long does it take for the space shuttle to catch up with the rocket..If a space shuttle travels at (147!)km and a rocket travels at (146!)km?

5) What is 987*79/41*78/76*67*68/7686*768786/687868*66768667/6786345*345345?

Give us some questions... The best question that is given will receive a prize.

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