Question

59-kg girl weighs herself by standing on a scale in an elevator. What does the scale read when: the elevator is descending at a constant rate of 8 m/s

Answer 1

578.2 N

Explanation:

The computation of reading on the scale is shown below:-

Data provided in the question

Weight of a girl = 59 kg

Constant rate = 8 m/s

Since the elevator is descended so the acceleration is zero

As we know that

Reading on the scale is

`F = m* g`

where, m = 59 kg

g
`= 59 * 9.8 m/s^2`

So, the reading on the scale is

= 578.2 N

Therefore for computing the reading on the scale we simply applied the above formula.