You are out in the woods and you need to move a boulder that is in the way, you happen to have a long 2-by-4 board with you and you decide to use it as a lever. you find a rock to act as a fulcrum. which of the following would be a good thing to try?
a. move the fulcrum rock closer to the boulder.
b. move the fulcrum rock farther from the boulder.
c. try using the board without a fulcrum.
d. try shortening your board.