What is the mass of a gold bar?

27.4

Explanation:

A standard gold bar weighs 12.4 kilograms (which is 400 troy ounces, or 27.4 pounds). Banks across the world use this weight.

I know this is going to be weird but you're going to have to use the mass formula mass equals weight divided by the acceleration of gravity m equals w divided by g converting the rate that is measured into pounds is equivalent to the Newton's and the formula determining the mass based on the height so basically the mass is going to be measured by Newtons

so just for equal breakdown just use m equals w divided by g