The acceleration due to gravity on the moon is 1.67m/s. What does it mean?

It actually is 1.67 m/s/s which means that if you are falling, the moon gravity will increase your falling velocity by 1.67 m/s every second.

If you are falling on the moon from a height. The speed at which you will be falling will increase by 1.67 m/s every second

which piece of furniture will have the most inertia and give the furniture movers the most difficulty in moving?  

answer

a 75kg dining table