An 80 kg person stands in an elevator which is ascending towards the top of a building. A) As the elevator begins its ascent, it accelerates at the rate of 1 m/s2 . Draw the free body diagram showing all the forces acting on the person while they undergo this motion. Use your free body diagram to calculate the force that the elevator must exert on the person in order to cause this acceleration in the upward direction. (Newton's 2nd Law)