Question

how do you identify feet as a derived or fundamental unit

Answer 1

one foot is 12inches its derived. . .

Answer 2

FPS system

Answer 3

@theyatin so therefore mile and second will also be derived?

Answer 4

@theyatin what about mile , area , second, mass, year , density, volume, weight

Answer 5

@Yahoo! what is the fps system?

Answer 6

second is basic unit it can not be derived
one inch =2.54cm
and 12inch= 1foot
i mile=1.6km
area density weight volume year are derived.

Answer 7

http://en.wikipedia.org/wiki/Fundamental_unit

Answer 8

fps is Brit version (foot pound second).

Answer 9

Theyatin, what you're teaching is wrong.

Answer 10

@maameb I suggest you forget what theyatin just taught you.

Answer 11

@SmoothMath do u know the correct answers?

Answer 12

Alright, maameb, think of it this way.
Some things, if I ask you to measure them, you will JUST measure what I asked you. An example is time. If I ask you how long something takes, you will get out a watch and you will time it. It doesn't matter if you tell me in seconds, minutes, hours. All you're measuring is time, and time is a fundamental unit because it doesn't depend on anything else.

Now, think about what you would measure if I asked you what something's SPEED was.

Answer 13

smooth math sorry i forgot fps
i have passed my higher secondary past 7 years so forgot few things. . .
maameb i was wrong sorry . . .

Answer 14

A watch wouldn't measure it for you. Neither would a ruler. But, if you measured how FAR something went, that is distance, and you also know how much TIME it took for it to get there, then you could calculate what its speed was.

Answer 15

That's because SPEED is a derived unit. It DEPENDS on distance and time.

Answer 16

smooth is going right way smoothly ;)

Answer 17

Any unit that is a derived unit can be expressed in terms of at least two other units.

Answer 18

@smoothmath

okay so can you identify feet , mile , area, second, mass , year , density, volume and weight for me?

Answer 19

Think about what quality the unit is used to measure. The fundamental qualities are: distance, time, mass, temperature, moles, electric current, or luminosity (brightness).
Anything else is derived.