Question

!!! One Medal Question !!!

Answer 1

go for it

Answer 2

Look at the diagram:

The pin is pressed into the leather with a force of 150 N.
The top of the pin has an area of 50 mm squared.
The point of the pin has an area of 0.1 mm squared.

1.What is the size of the force exerted by the point of the pin on the leather?
____N

2. Calculate the pressure exerted by the point of the pin. Give the units.

Answer 3

P= F/A
P= 150/ .00001

Answer 4

so is p=f/a for one and p=150/.00001 for 2

Answer 5

no
P=f/a
is the formula
i might have converted the .1mm to meters wrong, i am currently occupied with my physics lab about thermodynamics

Answer 6

oh

Answer 7

is this for question 1 or 2

Answer 8

1

Answer 9

@Vincent-Lyon.Fr

Answer 10

does that mean i have to divide 150 N by 50 mm squared

Answer 11

wait.... 1 has already been answered... it says 150 was being exerted

Answer 12

@Abarnett Get back to work!

Answer 13

why? hahaha i am taking a break... i am typing calculations :P

Answer 14

it says the point of pin #1 is poorly worded

Answer 15

calculate the pressure exerted by the point of the pin. Give the units

Answer 16

Sometimes I spend more time on here answering questions that I do working on my own questions. I hope you could hear the humor in my comment.

Answer 17

yes, yes i do

Answer 18

XD

Answer 19

You have energy spread out over an area. At the top of the pin it is 50mm^2 and at the bottom it is taking that energy and spreading it out over a smaller area.

Answer 20

?

Answer 21

but how would you work out the pressure

Answer 22

F1/A1 = F2/ A2

Answer 23

i am confused

Answer 24

how would you work it out easily

Answer 25

@doc.brown

Answer 26

1. The force is 150N
2. The force is spread out over the top of the pin.
150N / 50mm^2
That means one square millimeter has a part of the force, you should say Newtons per square millimeter.
The bottom of the pin has a smaller area but the same amount of force. So the force per square millimeter will be greater than the top.
150N / 0.1mm^2

Answer 27

so i would need to 150N / 0.1mm^2 for the answer

Answer 28

Correct

Answer 29

will it be 15,000

Answer 30

thnx so much once again you have been a great help to me cyah later bye