Suppose you need

7.0m

of Grade 70 tow chain, which has a diameter of

/38"

and weighs

2.16/kgm

, to tow a car. How would you calculate the mass of this much chain?

Set the math up. But don't do any of it. Just leave your answer as a math expression.

You calculate the mass using dimensional analysis.

We are given with

The weight of the chain per unit length which is 2.16 kg/m

We are also given with the needed length of the chain which is 7.0 m

Therefore, the mass of the chain is

7.0 m x 2.16 kg / m = mass of the chain in kg