A Uniform Plank Is 6

Multiple Choice

A uniform plank is 6.0 m long and weighs 80 N.It is balanced on a sawhorse at its center.An additional 160 N weight is now placed on the left end of the plank.To keep the plank balanced, it must be moved what distance to the right?

A) 6.0 m
B) 2.0 m
C) 1.5 m
D) 1.0 m
E) 0.50 m