dimension is the power of the quantity.
let me explain in detail.
for example take force.
F=ma is the equation.
this can be simplifies as
F=mass X velocity/time
F= mass X distance / (time x time)
now this the equation whcih give force in physical quantities.
taking the units of the physical quantities
the unit of force is kg.m/s^2 or newton(N)
now see the dimention part of this
mass has a dimention of 1
meter has a dimention of 1 and
time has a dimension of 2.
i think u got the answer.
another example for a clarity
velocity has a unit as metre/second
here metre has got the dimention 1 and second has 1 as dimention
but in acceleration(m/s^2)
metre has dimention of 1 and second has dimention 2
2006-08-29 06:47:56
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answer #1
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answered by Krishna D 2
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Dimensions Of Physical Quantities
2016-11-01 07:56:14
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answer #2
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answered by ? 4
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A quantity would just be number, like 12.5 ; but if it is in reference to an actual measurement or characteristic of an object, you must express it in units, i.e. if its mass is 12.5, you must know whether it is to be expressed in grams, pounds, ounces, kilograms, depending on what units the device upon which you measured the object reads.
2006-08-29 06:10:12
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answer #3
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answered by Black Dog 6
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Like inches, miles, milliliters, coulombs, grams; the physical units of what you are measuring.
2006-08-29 05:52:34
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answer #4
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answered by Answers1 6
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to determine the position we use to describr it by drawing graphs
2006-08-29 06:07:39
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answer #5
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answered by indian 2
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It means "how big is it" (& what shape, size, etc.)
2006-08-29 05:56:41
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answer #6
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answered by Anonymous
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