The potential energy in an elastic string of force constant K which has been extended by X metres is expressed as by Sunday | May 20 | Physics WAEC | 0 comments A. ½kX² B. kX² C. ½kX D. kX Correct Answer: Option A A. ½kX² Users Also Read These:The potential energy in an elastic string of force…A body of mass m = 0.5 kg is suspended by a string…A string of length 4m is extended by 0.02m when a…A string of length 1.0 m vibrates in 10 loops. If…A piece of stone attached to one end of string is…