    0

# A 60 kg person stands on a scale in an elevator. (a) What does the scale read (in N) when the elevator is at rest N (b) What does it read when the elevator is climbing at a constant speed of 4.5 ms N?

Updated: 8/11/2023 BryceBeMentgp3020

Lvl 1
6y ago

We must use:

(Force) = (Mass) x (Acceleration)

Force = 400 N

Acceleration = 9.8 m/(s^2)

Mass = M

400 N = ( M ) x ( 9.8 m/(s^2))

After calculating, we find the mass of the man to be 40.82 kg. Wiki User

14y ago   Wiki User

14y ago

Any body that is in free fall has no weight at all, regardless of its mass. If you neglect air resistance, and any friction between the elevator and its shaft, then neither the elevator nor the person in it will have any weight. Note. the newton is a unit of force, not weight. The person in this question has a mass of about 44 Kg; when standing on earth this will be a weight of ~ 44 Kg. Standing on the moon the weight would be ~7 Kg, and in free-fall it would be zero.   Wiki User

6y ago

A 60 kg person stands on a scale in an elevator.
(a) What does the scale read (in N) when the elevator is at rest? N
(b) What does it read when the elevator is climbing at a constant speed of 4.5 m/s? N
(c) What does it read when the elevator is falling at 4.5 m/s? N
(d) What does it read when the elevator is accelerating upward at 4.5 m/s2? N
(e) What does it read when the elevator is accelerating downward at 4.5 m/s2? N   Wiki User

14y ago

if you take the force of gravity as 9.8 then the scales will read 40.8kg but if you take the force of gravity as 10 then the sscales will read 40kg   Wiki User

12y ago

The answer would just be the weight converted into Newtons because the question is asking for the Weight force, so the weight needs to multiplied by the force of gravity, 9.8   Earn +20 pts
Q: A 60 kg person stands on a scale in an elevator. (a) What does the scale read (in N) when the elevator is at rest N (b) What does it read when the elevator is climbing at a constant speed of 4.5 ms N?
Submit
Still have questions?  Related questions

### If A person weighing 75 kg stands on a scale on a elevator what will it read if the elevator is at rest?

well I would say using newtonian mechanics he would weight as F=M x g, 75x9.7 which equals 727.5 newtons.

### A number that stands by itself is called an?

It may be called "the constant term".

### Where can one find information on tree stands in the US?

Tree stands for hunting have become a very popular feature for hunters. Tree stands are available from Summit Climbing Tree stands and Family Tradition Tree Stands.

constant

### Is a number that stands by itself in an equation?

It is called a constant.

A constant.

### What is a number that stands alone in an equation called?

It is called a constant.

### What is the acceleration of an elevator if a student stands on bathroom scale in the elevator and the scales reads 836 newtons and the elevator is moving upward?

We have no way to calculate that, unless you also tell us either his mass, or else his weight on motionless ground, like when the scale is on the bathroom floor.

### What is the scentific meaning of H?

H in chemistry stands for hydrogen. In Physics is stands for Planck's Constant In measurement it stands for hecto~ ( prefix meaning 100)

### What is happening with kf?

Kf stands for the freezing point constant of the solvent.

### A number that stands alone in a equation?

Either called a "term" or a "constant"