The energy released by nuclear bombs is measured in kiloton (kt) or megaton (Mt) units. One kiloton is a unit of energy released by 1000 tons of trinitrotoluene (TNT). One kiloton is 4.2×1012 joules. The yield of fission bombs is typically between 10 and 500 kilotons, the yield of fusion bombs is between 1 and 50 megatons. Calculate the length of a single line of large highway trucks carrying a 74.0 kt load. The capacitity of one truck is 28.0 t, the length of one truck is 15.0 m. The spacing between the trucks is 21.0 m.
The Attempt at a Solution
So i divided 74000 tons by 28 tons to get 2642.857 trucks then multiplied by the length of one truck to get 39642.857 then added (21*(2642.857-2)) to get the spacing included, i subracted two because there is no spacing before the first truck and none after the last truck. but this is incorrect what did i do wrong