$\backslash$table$[[$A uniform solid disk of mass $6\mathrm{.}1$ kg rolls down a hill without slipping,,$],[$dropping through vertical distance $56$ m $.$ the disk initial speed is $14\frac{m}{s}$ and,,$],[$final speed $22\frac{m}{s}.$ throughout the process only normal, gravity, static,,,$],[\backslash$table$[[$friction$,$ and air resistance act on disk. what is the work done by air$],[$resistance in KJ$]]$ ANswer,,$]]$