Which jar will roll down an incline in the shortest time, an empty one or one filled with peanut butter?
A) the empty jar
B) both reach the bottom at the same time
C) the filled jar
D) need more information
Question 2
A vertically-held sledge hammer is easier to balance when the heavier end is
A) on your hand.
B) at the top, away from your hand.
C) the same either way