In tennis, one of the primary ways to win a point is by making the ball bounce twice on your opponent’s side of the court. A tennis player hits a ball at a velocity of 50 m/s at a 0 degree angle from 1m high. When the ball bounces it reflects its velocity angle perfectly and loses 30% of its speed. How long does the other player have to return the ball before the second bounce?   

An ascending elevator, hanging from a cable, is coming to a stop. part a part complete identify all forces acting on the elevator from the list below. select all that apply. select all that apply. kinetic friction normal force tension weight static friction submitprevious answers correct part b draw a free-body diagram of the object. draw the vectors starting at the black dot. the location and orientation of the vectors will be graded. the exact length of your vectors will not be graded but the relative length of one to the other will be graded.