Question

A man weighs 900 newtons standing on a scale in a stationary elevator. If some time later the reading on the scale is 1200 newtons, the elevator must be moving with

constant acceleration downward
constant speed downward
constant acceleration upward
constant speed upward

Answer 1

constant acceleration upward

Step-by-step explanation:

The scale is measuring the normal force acting on the man.

If the normal force is greater than the man's weight, the man must be accelerating upward.