true
In a falling elevator, both the elevator and the object inside are accelerating downwards at the same rate under gravity. This creates the sensation of weightlessness, as the object is not experiencing any resistance or contact force from the elevator floor. However, gravity is still acting on the object, causing it to accelerate downwards at the same rate as the elevator.
If you are in a lift (elevator) moving at constant speed, whether up or down, and you have no visual contact with the outside, then you don't know that the lift is moving, and no physical experiment can detect the motion. Your apparent weight is the same as when you're at 'rest'.
If the elevator is moving uniformly, the spring scale should record the same weight when it's going up as it does when it's standing still.If the elevator is accelerating (speeding up or slowing down), the spring scale will record a greater or lesser weight respectively.
A big pulley generally lifts an object faster than a small pulley. This is because a big pulley has a larger diameter, which means the object will be lifted a greater distance in each rotation compared to a smaller pulley.
If the elevator's speed is constant (acceleration is zero), regardless of whether it's up or down,then your weight in it is the same as your normal weight on the ground.It should be easy to carry a bathroom scale onto an elevator with you some day and check it out.
Yes. Americans call Englands' lift an elevator.
The British word 'lift' means the same as the American elevator
In a falling elevator, both the elevator and the object inside are accelerating downwards at the same rate under gravity. This creates the sensation of weightlessness, as the object is not experiencing any resistance or contact force from the elevator floor. However, gravity is still acting on the object, causing it to accelerate downwards at the same rate as the elevator.
Anyone, boy or coin, inside the lift (elevator USA) would, should the lift malfunction and rapidly fall, fall at the same rate as the descending lift. Hopefully, the automatic braking system on lifts would bring the lift to a halt before it hits the ground!
The British word 'lift' means the same as the American elevator
the effort needed to lift an object is about the same as the weight of an object:)
Amount can be a value in money terms, or the mass of an object. Neither is a capacity.Amount can be a value in money terms, or the mass of an object. Neither is a capacity.Amount can be a value in money terms, or the mass of an object. Neither is a capacity.Amount can be a value in money terms, or the mass of an object. Neither is a capacity.
If the hidden object has the same properties as the airplane, it likely can fly, has wings for lift, an engine for propulsion, and is designed for aerial transportation.
If you are in a lift (elevator) moving at constant speed, whether up or down, and you have no visual contact with the outside, then you don't know that the lift is moving, and no physical experiment can detect the motion. Your apparent weight is the same as when you're at 'rest'.
If the elevator is moving uniformly, the spring scale should record the same weight when it's going up as it does when it's standing still.If the elevator is accelerating (speeding up or slowing down), the spring scale will record a greater or lesser weight respectively.
The elevator of today is not the same elevator Otis invented although it has many of the same features and works on the same principles. He worked out the counterweight, the pulleys, and the safety brake, or the basic units. It has all been upgraded.
An elevator would have greater power in lifting a box to the tenth floor. Elevators are specifically designed for vertical transportation and have mechanisms like motors and pulleys that can easily lift heavy loads. Stairs, on the other hand, rely on human effort and do not have the same mechanical advantage, making it more difficult and less powerful to lift a box to a higher level.