A truck driver on the top of a hill lets his hand brake off in neutral gear so that his truck drifts 150m down the hill to a level road. Near to the bottom he realizes that he cannot stop and will need to use the emergency slip road track at the bottom filled with sand. The distance down the hill from the top is 150m and it has a slope of 30 degrees. What will the speed of the truck be down the slope as it hits the sand? If the sand has a resistive force of 100kN against the trucks wheels which has a mass of 5.5 tonnes, calculate the distance the truck travels in the sand before stopping.