Calculate Tension of String for Ball Bearing Density of 8000kg m^-3

[Wroxley]

I stumbled upon this question and I have no idea how to figure it out:

A ball bearings mass is 180g, it is on some string with oil that has a density of 800Kg M^-3
Calculate the tention of the string if the ball bearing had a density of 8000kg m^-3

Density= Mass/Volume

Tention = Force/Area?


Balls Volume = 0.18 Kg * 8000kg m^-3 = 1440m^3?

 

[SteamKing]

Tension (not tention) is the force which tends to keep the string taut. If the ball bearing is tied to the string before it is put into the oil, what is the tension in the string? How does this tension change after the ball bearing is immersed in the oil?

 

[Redbelly98]

Welcome to Physics Forums.

I stumbled upon this question and I have no idea how to figure it out:

A ball bearings mass is 180g, it is on some string with oil that has a density of 800Kg M^-3
Calculate the tention of the string if the ball bearing had a density of 8000kg m^-3

Density= Mass/Volume

Tention = Force/Area?

Actually, tension = force (of a string or rope)

Balls Volume = 0.18 Kg * 8000kg m^-3 = 1440m^3?

When you do the calculation you are showing above, the resulting units are kg² m^-3, which is not a volume.

Try using the equation you wrote earlier,

Density= Mass/Volume​

so

Volume = ?​