Question

Find the total force on the bottom of a cube with a volume of 1000.0m^3 filled with water. No picture included

Answer 1

@eashmore
i was just wondering if this type of problem uses the P=F/A formula.
I also dont know how to solve for force if the equation above is the one we use...

Answer 2

I'd approach it by finding the volume of the cube, and then using that and the density of water to find the mass of the water in that cube. Multiply by gravity.

Answer 3

so dont use P=F/A?

Answer 4

A=area

Answer 5

What's the volume of a cube?
V=?

Answer 6

V= s^3

Answer 7

s=10 right?

Answer 8

Oh, sorry, I slightly misread the question. We're already given the volume.

What's the density of water?

Answer 9

1000.00 kg/m^3 right?

Answer 10

Right. So how many kilograms of water do we have?

Answer 11

uh... 1000?

Answer 12

Mass = Volume * Density

Answer 13

\[1.0\times10^{-6}kg\]
right?

Answer 14

Mass = (1000 m^3)(1000 kg/m^3)

Answer 15

yes i know and i posted what i got

Answer 16

1.0 x 10^6
(you had -6)

Answer 17

o sorry my bad...

Answer 18

ya it says to the 6th power my bad

Answer 19

Now, Force = mass x acceleration

The only acceleration there would be, is gravity. So what's the force?

Answer 20

\[9.81\times10^{6}N\]
right?

Answer 21

Yep :)

Answer 22

thank you :)

Answer 23

Good work :)

Answer 24

you too...