1. The problem statement, all variables and given/known data A body of mass 2 kg thrown vertically with KE of 490 joules. If the acceleration due to gravity is 9.8 m/s^2 of the body becomes half its original value is given by: a.50 b.12.5 c.25 m d.10 m 2. Relevant equations PE=MGH K.E=1/2MV^2 PE=KE 3. The attempt at a solution K.E=P.E 490=MGH 490=2*9.8*H 490=19.6*H 490/19.6=H 25=H H=25 m is it right ? or we have to half the value.