2 part question stumped on #2. What force in N will the water in #1 exert against ones face of a quarter at?

Question

this depth? quarter diameter= 2.4 cm

#1. What hydrostatic pressure at a depth of 5.0 meters in a freshwater lake
anwer
2.75 kg

i am horrible at math need all help I can get when studying.

errgg yes 49 pascals, got it working on second part

49 pascals * 1.25= 61.25?

hmm lemme see

Answer 1

Dear Fresca,
The Quantity you give is a unit of Mass!!!!


PART 1: You will need your answer in Pascals which is Newtons per square metre.
The formula you need is: P = dgh (your notes may use different letters)
where d is the density of the water (Kg/cubic metre),
g is the acceleration due to gravity (9,806 or 10 m/s/s) and
h is the depth of the water.

PART 2: You must work out the area of your Quarter's face in square metres and then multiply that by the pressure at that depth.
F = P * A in Newtons

Use your study guide, notes or book and see if you can make sense of what I have shown you.