M Prep | MCAT 2015 Question of the Day - Prep, Practice Questions, and More!

Q:

A family sits on a 8m long see-saw. The daughter, massing 20kg, sits at the left end of the see-saw, and the father, massing 80kg, sits in the middle of the right portion of the see-saw. Where must the mother, massing 60kg, sit in order to make the see-saw in static equilibrium and level with the ground?

A

1 m left of pivot

B

1 m right of pivot

C

4/3 m left of pivot

D

4/3 m right of pivot