how do i do dimensional analisis? please help....im despret!!!!!

Question

anonymous · Answer

Through equation?

anonymous · Answer

yes!!! thank you

anonymous · Answer

please i need the help quick!

shane_b · Answer

Do you have a specific question to answer?  It would be easier to show with an example.

kainui · Answer

So here's a basic look at dimensional analysis using the rate formula, distance = rate * time.

d=rt

What're the units of all of these?

$$meters=\frac{ meters }{ second }*second$$

Now you can see how seconds divide out and just leave meters=meters.

kainui · Answer

Since meters=meters, we know that's a true statement, so you know your equation and calculations with that equation are probably going to be right.

It's called dimensional analysis because the units of the numbers are the dimensions. It's pretty simple and extremely useful. I use it all the time because it helps me remember equations. It lets me look at equations I might have memorized incorrectly and then check them.

anonymous · Answer

no dificult..
just look out for the formulas for variiius quantities..
likw work=force *displacement
just remeber 1st fr=ew dim.formula..others will come down themseleves