Question

Predict how the upward force exerted on the feet by the scale will compare to the weight of the man if the elevator is moving upward at a constant speed.

Answer 1

Answer:

The scale will show only the effect of the acceleration due to gravity on the man

Explanation:

When an elevator is accelerating up the resultant weight of the person is

$W=m(g+a)$

where,

g = Acceleration due to gravity

a = Acceleration of the elevator

Acceleration is given by the rate of change of velocity. Here, the elevator is moving up at a constant speed, this means there is no acceleration.

So, a=0

$\\\RightarrowW=m(g+0)\\\Rightarrow W=mg$

The scale will show only the effect of the acceleration due to gravity on the man.