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Why do you feel heavier going up a lift?
The force of the lift accelerating you upward is added to the force dur to gravity. You feel this as added weight. The same effect happens when it stops moving going downward, and the opposite occurs when you begin going down or stop going up. You are not resisting the force of gravity and you do not feel the weight; for some of that time, you are actually freefall.
Why do you feel light coming down a hill on a roller coaster?
The same thing happens if you are coming down in an elevator, or if you fall from any height. If you are standing still on the ground, you are subjected to gravity from the Earth which is effectively an acceleration of 1g or about 9.81 metres per second squared and you will feel your normal weight. If you fall from a height you will accelerate towards the ground at about 9.81 metres per second squared and you will feel "light" or indeed "weightless". On the downward hill of a rollercoaster, the rate of descent is enough to make you feel lighter than usual and similarly, on the upward hill of a rollercoaster the rate of ascent might be enough to make you feel heavier than usual. The design of the rollercoaster determines just how much lighter you will feel on the downward sections. You can try a neat little experiment if you take a set of ordinary bathroom scales with you into an elevator. You should observe that you "weigh more" when the elevator accelerates upwards and that you "weigh less" when the elevator accelerates downwards.
What are the two forces acting on you in an elevator?
1). The force of gravity attracts you downward. 2). The floor of the elevator car exerts an upward force on the bottom of your feet. When #1 is greater than #2, you accelerate downward, and you feel lighter than normal. That happens when the car is starting to go down, or finishing going up. When #2 is greater than #1, you accelerate upward, and you feel heavier than normal. That happens when the car is starting to go up, or finishing going down. When #1 and #2 are equal, you don't accelerate at all, and your weight feels normal. That happens when the car is standing still, or rising at a steady speed, or dropping at a steady speed.
What happens to your weight if you are in an elevator traveling upward at a constant speed?
Your weight (the force you feel at the soles of your feet) in an elevator traveling at any constant speed in anydirection would be the same at any instant as it would be if you were in that elevator in the same place, stopped. For practical purposes, it would be the same as it would be when you're standing on the ground. Technically, weight changes with altitude, but for any existing building the difference between your weight at the lowest and highest points of the building will be so slight as to be undetectable. You'd probably lose more weight due to evaporation of moisture in perspiration and exhaled breath during the elevator ride than you would due to the slight reduction in gravity resulting from your moving a bit further from the surface of the Earth.In order for your perceived weight to change, there has to be an acceleration. Constant speed/velocity is not acceleration. You would feel a change in weight as the elevator slowed down or sped up, but you would feel your "normal" weight once the elevator reaches constant speed/velocity.
What makes you feel weightless in an elevator?
The earth's gravity causes objects on earth (you) to accelerate toward earth's center at approximately 9.8 m/s2, when an elevator accelerates toward the earth's center (down) some of the force that you feel from gravity (weight) is negated. This results in a feeling of weightlessness.
When do you feel lighter or heavier on a roller coaster?
-- You feel lighter on a roller coaster when your speed is either upward and decreasing or downward and increasing. -- You feel heavier when your speed is either upward and increasing or downward and decreasing. -- Exactly the same as on an elevator.
Why do astronauts feel heavier during launch?
Astronauts feel heavier during launch because of the upward motion of the spacecraft. This has the effect of adding extra "g's," or gravity forces, making everything seem heavier while the thrust is occurring.
Why do you feel heavier going up a lift?
The force of the lift accelerating you upward is added to the force dur to gravity. You feel this as added weight. The same effect happens when it stops moving going downward, and the opposite occurs when you begin going down or stop going up. You are not resisting the force of gravity and you do not feel the weight; for some of that time, you are actually freefall.
What are the two forces acting on a person as they move up and down in an elevator and when are these two forces equal and when are they not equal?
When the elevator is still the force of gravity due to your weight pressing downwards on the floor is equalled exactly by the floor pushing you upwards with the same force. When the elevator rises you feel a little heavier, and the elevator is pushing upwards with the same increased force. When the elevator descends you feel that you lose a little weight, and the floor pushes up at you with the equally reduced force, so you descend.
Why do you feel light coming down a hill on a roller coaster?
The same thing happens if you are coming down in an elevator, or if you fall from any height. If you are standing still on the ground, you are subjected to gravity from the Earth which is effectively an acceleration of 1g or about 9.81 metres per second squared and you will feel your normal weight. If you fall from a height you will accelerate towards the ground at about 9.81 metres per second squared and you will feel "light" or indeed "weightless". On the downward hill of a rollercoaster, the rate of descent is enough to make you feel lighter than usual and similarly, on the upward hill of a rollercoaster the rate of ascent might be enough to make you feel heavier than usual. The design of the rollercoaster determines just how much lighter you will feel on the downward sections. You can try a neat little experiment if you take a set of ordinary bathroom scales with you into an elevator. You should observe that you "weigh more" when the elevator accelerates upwards and that you "weigh less" when the elevator accelerates downwards.
What are the two forces acting on you in an elevator?
1). The force of gravity attracts you downward. 2). The floor of the elevator car exerts an upward force on the bottom of your feet. When #1 is greater than #2, you accelerate downward, and you feel lighter than normal. That happens when the car is starting to go down, or finishing going up. When #2 is greater than #1, you accelerate upward, and you feel heavier than normal. That happens when the car is starting to go up, or finishing going down. When #1 and #2 are equal, you don't accelerate at all, and your weight feels normal. That happens when the car is standing still, or rising at a steady speed, or dropping at a steady speed.
Why do you feel heavier when you go up in an elevator?
Remember, the force of gravity on you is pretty much constant and unchanging. However, the degree to which you 'feel' it depends on whether or not something is pushing back up at you, to balance/resist your weight. If we assume that the elevator is going at a constant speed, then we know that the net force on your body must be zero, since you are not accelerating. Therefore the elevator is still supplying an upward force to resist your weight, and you will still feel heavy. You will only feel lighter if the lift is allowed to accelerate downwards. We can justify all this with equations. If R is the force pushing up against your feet (which makes you feel heavy) then acceleration (a) = (mg - R) / m Rearranging: R = mg - ma Dividing through by mg gives an expression for the proportion of ordinary weight felt: R/mg = 1 - a/g
What force would the scale exert on a 53 kg person in a elevator and its moving up at a constant speed?
Scale already reads 70 kg when elevator is at rest. This is Gravity Force down (Fg), plus Normal force (n) up. Now, force on the man in the upward direction from accelerating up (force E) = mass of the man x acc. of the lift in the upward direction = 70 x5.5 N = 385 N. Now force of gravity (Fg) = 70 x 9.8 N = 686 N. Plus the normal force (n) -which keeps him falling through floor of elevator - is also acting on him = 686 N (same as gravity in up direction).So, F(y) = Elevator (Up) 385 (up) + Normal (up) 686 N - Gravity (down) 686 N. Therefore net force in the upward direction (against bottom of scale-floor) = (+385 + 686 - 686) N = 385 N. Hence the reading of the scale has extra = (385N). Scale is calibrated for "g = 9.8 m/ss". So, (385 / 9.8m/ss) kg = 39.3 kg extra. So, 39.3 kg (extra) + 70 kg (original) = 109.3 kg. This is why you feel heavier when elevator goes up.
Gravitational force decreases with distance. What does this mean for a space traveler who leaves earth in a spaceship?
While his ship is accelerating away from the Earth he will feel heavier as acceleration acts a lot like gravity. Upon decelerating he will begin to feel lighter, a lot lighter, until he is almost weightless.
Why does it feel like you keep going when an elevator stops?
What you are feeling when an elevator stops is called deceleration. The elevator doesn't stop right away. If it did, your knees would buckle and you would fall down from the impact, so an elevator slows down like a car does just before it stops. What makes the sensation feel weird is there is no visual indication of this happening, so you may think it has stopped, but it is really just slowing down. When you get on an elevator and the doors close (hopefully), it has zero velocity. When it starts going up, it must accelerate momentarily. During this acceleration period, before the elevator reaches its constant traveling speed, your apparent weight increases. You can feel this force in your legs and feet. If the elevator suddenly stopped, you would keep going.You would continue going in an upward direction (because of your inertia), mainly because you are not buckled in or otherwise attached to the elevator. You would lose contact with the floor. During that unfortunate scenario, you would be momentarily weightless. But with nothing to propel you upward anymore, you would slow down because of the acceleration of gravity. On normally operating elevators, ones designed not to make people sick or terrify them, the deceleration is slight, so you don't lose contact with the floor. You may feel momentarily lighter (in fact, if you were standing on a bathroom scale, it would read lower during the deceleration as you approach your floor), but you would not feel weightless.
Why does the jumper feel heavier after it is washed?
The weight of the jumper is heavier due to water
What is the elevator property?
The "elevator property" is thepsychological urge to help others that you are forced into close contact to. In other words, when you walk into an elevator full of people, you feel connected to them. If that elevator crashed, you would feel inclined to help the others out before yourself. This principle works everywhere, not just in elevators.
