Work done by a fonce in displacing an object with mass m given by 1 by :ds is dw = ids So, W W = F. as using 8 = vt ds = J dt, assuming for the short time at, velocity remains constant. W du dt (F. Jdt using Newton's and law, in I . in du v dt dt knowing that w + d (v.) = v. du du at dt . at 25. du dt -W m 2 dt S l W) Id (v. v) dt If the velocity v changes to uf under the action of the force, Work done by a fonce in displacing an object with mass m given by 1 by :ds is dw = ids So, W W = F. as using 8 = vt ds = J dt, assuming for the short time at, velocity remains constant. W du dt (F. Jdt using Newton's and law, in I . in du v dt dt knowing that w + d (v.) = v. du du at dt . at 25. du dt -W m 2 dt S l W) Id (v. v) dt If the velocity v changes to uf under the action of the force