Connect the opposite sides of the see-saw. Make the see-saw balance.
A. 400N, 3m from pivot
B. 1000N, 1.5m from pivot
C. 600N, 3m from pivot
D. 500N, 5m from pivot
SEPARATE ANSWERS WITH A COMMA (PLEASE, ALL LOWER CASE, NO CAPITALS)
For a see-saw to balance, the anti-clockwise _______ must equal the ________ moment. A moment is another word for a turning effect. A see-saw is like a lever, turning around a ______, also called a fulcrum. A lever is a simple _______, which amplifies the ______ force