A 82 kg cross-country skierglides over snow as in Figure P11.25. The coefficient of frictionbetween skis and snow is 0.40. Assume all the snow beneath his skis is at 0°C and that all theinternal energy generated by friction is added to snow, whichsticks to his skis until melted. How far would he have to ski tomelt 4.0 kg of snow?