Answer the following question, showing work (no additional information given).

1. After starting from rest and sliding down a 3.2 m high snow- covered (frictionless) hill on an inner tube, Ashley is coasting mg sin(b) across a level snowfield at a constant velocity. Miranda runs toward her at a velocity of 4.2 m/s and hops on the inner tube soa Hur joining Ashley. (Ashley's mass is 70 kg and Miranda's mass is 60 kg. Ignore the mass of the inner tube and any friction between the inner tube and the snow.) a. What is Ashley's gravitational potential energy at the top of the hill? b. What is Ashley's kinetic energy after sliding down the hill? c. How fast is Ashley moving after sliding down the hill but before Miranda jumps on? [If you cannot find this speed, use 8.0 m/s which is close to the calculated speed as you complete the problem.] d. Using momentum conservation, determine how fast the two people slide across the snow on the inner tube after the "collision"