Please help me Share with your friends Share 0 Anurag Kumar answered this 0 View Full Answer Rock Star Kiran answered this 2.5kgm" 0 S A K S H I answered this HIT LIKE IF U GET IT!! Change in kinetic energy = (1/2)mvf2 - (1/2)mvi2 = (1/2)×0.5×( 202 - 102 ) = 300 J Workdone by the force = 300 J Theorem used is " Work-Energy Theorem " 1