## 9 2 years ago please show ur Work >>>> Dimension of a pressure ?

1. 9

i need to see the steps of solving it plz :)

2. ash2326

Do you know the relation between Pressure and force?

3. 9

i know $p = \frac{ F }{ a }$ So $= \frac{ m a }{a }$

4. ash2326

$P=ma / A$ $a\ne A$ can you tell me the difference between a and A?

5. 9

idk , u tell me :B

6. 9

i just wanna know how we got L to the power -1 and T to the power -2

7. 9

how we got the negative powers ?

8. ash2326

a= acceleration= distance/ (time )^2= L/T^2=$$LT^{-2}$$ A= area= $$L^2$$

9. 9

oh yeah

10. ash2326

Can you try now?

11. 9

gemme a minute

12. ash2326

sure :)

13. 9

= $\frac{ M L T ^{-2} }{L T ^{-2} }$

14. 9

is that right -0-

15. ash2326

Why you have $$Lt^{-2}$$ in the denominator?

16. 9

because pressure = $\frac{ m a }{a }$ and $a = l T ^{-2}$

17. 9

u just said that >_>

18. ash2326

19. 9

is p pressure Force over area ?

20. ash2326

Yes :)

21. 9

i thought its force over acceleration -.-

22. 9

23. ash2326

No problem, you got it now?

24. 9

yeah -,- thanks again