William Tell is shooting at an apple that hangs on a tree, as shown in the figure below. The apple is a horizontal distance of 20.0 m away and at a...

William Tell is shooting at an apple that hangs on a tree, as shown in the figure below. The apple is a horizontal distance of 20.0 m away and at a height of 4.00 m above the ground. If the arrow is released from a height of 1.00 m above the ground and hits the apple 0.500 s later, what is the arrow's initial velocity?