0
What is the weight of a 50kg man stands on the floor of an elevator descends with an acceleration of 2ms2?
Wiki User
∙ 15y ago
If you stand in a lift that is accelerating downwards at a rate of 2 m s-2, you will experience an apparent upthrust that acts against your weight. Your weight (the force that acts in a downward direction due to gravity) is:
W = m g
= mass x gravitational field strength
On Earth, g is about 9.8 N kg-1 or 9.8 m s-2 (both units are equivalent)
W = 50 kg x 9.8 N kg-1
= 490 N (in a downward direction)
The upward force due to your acceleration is given by Newton's second law:
F = m a
= mass x acceleration
= 50 kg x 2 m s-2
= 100 N (in an upward direction)
So the overall weight you feel is the difference between them. So:
W = 490 - 100
= 390 N
Wiki User
∙ 15y ago
Add your answer:
Earn +20 pts
Does your weight change when elevator goes down?
Yes, your weight appears to decrease slightly when an elevator goes down. This is because you and the elevator experience a decrease in acceleration as the elevator descends, which temporarily reduces the force acting on your body and hence, your perceived weight.
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?
The acceleration of the elevator can be calculated by dividing the reading on the scale (836 N) by the student's mass to get the acceleration due to the elevator's motion. Additionally, the acceleration due to gravity should also be taken into account, as it will affect the weight measured by the scale.
If your weight increases while riding in an elevator which direction are you going in?
If your weight increases while riding in an elevator, you are likely going upwards. As the elevator moves upwards, you experience a sensation of increased weight due to the acceleration.
Why does weight on an elevator change though you don't leave earths gravity?
If the elevator accelerates, the acceleration will provide an additional apparent force.
Why do you weight less on the elevator?
You may feel like you weigh less on an elevator because when the elevator accelerates upward, you experience a force pushing you upward along with the force of gravity. This combination can make you feel lighter temporarily.
What is the force on a 1140 kilogram elevator that is falling freely under the acceleration of gravity only?
The force on the elevator is equal to the mass of the elevator multiplied by the acceleration due to gravity. The acceleration due to gravity is approximately 9.81 m/s^2. Therefore, the force on the elevator is 1140 kg * 9.81 m/s^2 = 11,187.4 N.
What happens t the reading scale as the elevator begins to move upward?
As the elevator begins to move upward, the reading on the scale will increase due to the increase in apparent weight experienced by the person inside the elevator. This increase is a result of the combination of the person's actual weight and the upward acceleration of the elevator.
You weigh yourself when you are in a motionless elevator You weigh 100 lbs The elevator starts to move and you weigh 90lbs What is the acceleration of the elevator?
The difference in weight is due to the acceleration of the elevator. Using the formula F = ma, where F is the force (weight), m is the mass, and a is the acceleration, we can calculate the acceleration to be approximately 1.02 m/s^2.
When riding in an elevator why does a person appear to lose weight when accelerating downward?
When an elevator accelerates downward, the person inside will experience a greater force pushing them upward that is greater than their actual weight, making them feel lighter. This sensation is due to the interplay of different forces acting on the person in relation to the acceleration of the elevator.
If I am in an elevator that is traveling upward at constant speed How does weight compare to your normal weight on the ground?
Your weight in an elevator traveling upward at a constant speed would be the same as your normal weight on the ground. Weight is a measure of the force of gravity acting on an object, and as long as the elevator is not accelerating or decelerating, the gravitational force acting on you remains constant.
If you were to weigh yourself in an elevator that is in free fall would you weigh more?
No, you would not weigh more in a free-falling elevator. In free fall, the elevator and everything in it are accelerating downward at the same rate due to gravity. This means that you would experience weightlessness in the elevator.
What happens to your weight if you are in an elevator traveling upward at a constant speed?
When you are in an elevator traveling upward at a constant speed, your weight remains the same. The sensation of weightlessness or feeling heavier typically occurs during changes in acceleration, such as when the elevator starts or stops.
