1.An aircraft has a glide ratio of 12 to 1. (glide ratio means that the plane drops 1m for every 12m it travels horizontally.) A building 45m high lies directly in the glide path to the runway. If the aircraft clears the building by 12m, how far from the building does the aircraft touch down on the runway?
2.A train starts from station A and for the first kilometer, ittravels with a uniform acceleration. Then, for the next towkilometers, it travels with a uniform speed. Finally, the traindecelerates uniformly for another kilometer before coming to restat station B. If the time for the whole jurney is six minutes, drawthe v-t graph and determine the maximum speed of the train.