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

The most plausible answer is b, duration. the given amount of time is considered how long it last for.

1. and 2. question: in which equation? or i don't understand you, 3. a), 4. c), 5. c), 6. b), 7. d), 8. d) if small number is underlined(behind symbol) , b) if big number is underlined(in front of symbol)9. what is underlined there? 10. c)