Apparent weight N If the "elevator is accelerated a Net force≠0 net N+mg= ma g Choosing axis as illustrated N-mg=ma=>N=m(g +a) a Apparent weight is W′=m(g+a) N mg W>mg if a>0(upward): heavier W <mg if a>0(downward): lighter N Physics 121: Lecture 5, Pg 7Physics 121: Lecture 5, Pg 7 Apparent weight If the “elevator” is accelerated Net force  0 Choosing axis as illustrated a N mg Apparent weight is W’ >mg if a>0 (upward): “heavier” W’ <mg if a>0 (downward): “lighter” a N mg -N