ANSWERS: 1

very simple. DRAW a FREE BODY DIAGRAM! you have F=ma. and you have 2 forces acting on the scale. one is the weight of the man. the second is the normal force from the elevator floor (check you FBD). (b/c when ever you have accel. you have a force) so F1= (m) X (accel. of Gravity) = 60 x 9.81 = 588.6N so F2= m X a = 60 X 4.9 = 294N F(on the scale) = F1 + F2 = 882.6N
Copyright 2018, Wired Ivy, LLC