Question

Suppose you balance a 2.0-kg ball on the tip of your finger, which has an area of 1.2cm2 . Find the pressure on your finger.
Well pressure = force/area and the force exerted by 2kg is 19.6N (9.8N=1kg) so it would be:
19.6N/1.2cm^2 = 16.33
Is that correct? If so what unit would I use to express the pressure?

Answer 1

midhun.madhu1987
Do you know this?

Answer 2

pascals

Answer 3

Okay thank you raffle, but is my answer correct?

Answer 4

Do I have to convert cm^2 to m^2 first? Or is it fine the way I did it?

Answer 5

If I convert cm^2 to m^2 it would be .00012m^2 as the area. That would give:
19.6N/.00012m^2 = 163333.33 N/m^2 or 163333.33 Pa or 163.33 kPa
So would that be the correct answer?

Answer 6

midhun.madhu1987

Answer 7

@midhun.madhu1987

Answer 8

Pascals (Pa) i think so...

Answer 9

okay thank you