FY12CE 2016 * a 10 kg cart placed on track at O and is given enough energy to enable it to get over hills P and T and return to a same level track at U. Assume the track from O to U is frictionless. ptop potential T 10 kg Q S 6 m U 0 m -8 m R Button Kinetic (i) How much kinetic energy should be given to the cart? (ii) What is the cart's total kinetic energy at R? (iii) What is the speed of the cart at U?
