Fed is practicing his tennis stroke by hitting balls against a wall. The ball leaves his racquet at a height of 0.60 m above the ground at an angle of 10o with respect to the horizontal. The speed of the ball as it leaves the racquet is 20.0 m s and it must travel a horizontal distance of 10 m before it reaches the wall (see Fig. 2.) (a) How far above the ground does the ball strike the wall? (b) Is the ball on its way up or down when it hits the wall. Explain.