an ambulance station is located 30 miles from one end of a 100-mile road. the station services accidents along the entire road. suppose that an accident occurs. suppose that suppose accidents occur with uniform distribution along the road and suppose that the ambulance travels 60 miles per hour. let t be the amount of time it takes the ambulance to arrive at the sence with the assumption that the ambulance leaves the station right after the accident occurs. find the distribution function ft(t) and the density function ft(t)