To determine the location of her center of mass, a physics student lies on a lightweight p...

To determine the location of her center of mass, a physics student lies on a lightweight plank supported by two scales 2.50 m apart, as indicated in. If the left scale reads 290 N, and the right scale reads 122 N, find (a) the student’s mass and (b) the distance from the student’s head to her center of mass.

FIGURE