A woman throws a ball at a vertical wall d = 6.8 m away. The ball is h = 3.4 m above ground when it leaves the woman's hand with an initial velocity of 18 m/s at 45°. When the ball hits the wall, the horizontal component of its velocity is reversed; the vertical component remains unchanged. (Ignore any effects due to air resistance.)
(a) Where does the ball hit the ground?
(b) How long was the ball in the air before it hit the wall?
(c) Where did the ball hit the wall?
(d) How long was the ball in the air after it left the wall?