Solving Pressure: P = 7.35N / (.24m x .2m)

[jefgreen]

1. Relevant equations

P=F/A

2. The attempt at a solution

P= 7.35 N
-------------
(.24m)(.2m)



Answer= 150.0 PA. <-- That is the correct answer which my instructor gave me. Although, whenever I plus this into my calculator I wind up with 6.125 or 6.16666... (when rounding 7.35 N to 7.4 N). What am I doing wrong?

 

[jefgreen]

bump 10 char

 

[RoyalCat]

You're inputting the numbers into your calculator wrong. Do it one step at a time and mind your parentheses!

 

[jefgreen]

@RoyalCat: How should plug them in?

 

[jefgreen]

bump 10 char

 

[tiny-tim]

somehow you're doing 7.4 divided by .24 divided by .2 so that the .2 comes out on top …

7.4*0.2/0.24 = 6.1666