On the Apollo 14 mission to the moon, astronaut Alan Shepard hit a golf ball with a 7 iron. The acceleration due to gravity on the moon is 1/6 of its value on earth. Suppose he hits the ball with a speed of 21.1 m/s at an angle 31° above the horizontal.
How much farther did the ball travel on the moon than it would have on earth?
For how much more time was the ball in flight?