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What is the difference between a truly weightless object and a obect that is weightless because it is free fall?
A truly weightless object experiences no gravitational force, such as an object in deep space far from any massive body. An object that is weightless due to free fall is still under the influence of gravity but is in a state of free fall where the force of gravity and the acceleration of the object cancel out, making it feel weightless.
Why is an object considered weightless when there is no normal force or when an object is in freefall?
An object is considered weightless when there is no normal force acting on it because weight is the force exerted by gravity on an object's mass. In freefall, the object is only subject to the force of gravity, which causes it to accelerate with the same acceleration as the object itself, resulting in a sensation of weightlessness.
can a weightless body have inertia?
Yes, a weightless body can still have inertia. Inertia is the resistance of an object to changes in its motion, and it is determined by the mass of an object rather than its weight. Even if a body has no weight due to being weightless in space, it will still have inertia based on its mass.
Why does an astronaut have to exert a force on a weightless object in order to move it?
An astronaut has to exert a force on a weightless object in order to move it because in space, there is no gravity to naturally pull or push objects. Therefore, the astronaut must apply force to overcome inertia and move the object.
An object in free fall seems to be?
An object in free fall appears weightless because it is falling under the influence of gravity alone, with no other forces acting on it. This gives the illusion that the object is floating or moving effortlessly through the air.
What is the difference between a truly weightless object and a obect that is weightless because it is free fall?
A truly weightless object experiences no gravitational force, such as an object in deep space far from any massive body. An object that is weightless due to free fall is still under the influence of gravity but is in a state of free fall where the force of gravity and the acceleration of the object cancel out, making it feel weightless.
Why is an object considered weightless when there is no normal force or when an object is in freefall?
An object is considered weightless when there is no normal force acting on it because weight is the force exerted by gravity on an object's mass. In freefall, the object is only subject to the force of gravity, which causes it to accelerate with the same acceleration as the object itself, resulting in a sensation of weightlessness.
How come an object can never be weightless?
gravity and mass...
Why isn't and object free fall really weightless?
rawr
can a weightless body have inertia?
Yes, a weightless body can still have inertia. Inertia is the resistance of an object to changes in its motion, and it is determined by the mass of an object rather than its weight. Even if a body has no weight due to being weightless in space, it will still have inertia based on its mass.
How can an object in space warp space and time if it is essentially weightless and would not therefore create any gravitational influence on it?
Weightless is not the same as massless -- it is an object's mass that warps space (and time) around it, creating a gravitational field.
Why does an astronaut have to exert a force on a weightless object in order to move it?
An astronaut has to exert a force on a weightless object in order to move it because in space, there is no gravity to naturally pull or push objects. Therefore, the astronaut must apply force to overcome inertia and move the object.
When an object is in free fall is it weightless?
Because the object's inertial motion is equal to the gravitational acceleration. Weight equals mass times gravitational acceleration (W=mg), so you would feel weightless, but your mass stays the same.
An object in free fall seems to be?
An object in free fall appears weightless because it is falling under the influence of gravity alone, with no other forces acting on it. This gives the illusion that the object is floating or moving effortlessly through the air.
Can an object with mass be weightless while under the influence of gravity?
No, an object with mass will always experience the gravitational force, so it cannot be truly weightless when under the influence of gravity. Weight is the measure of the force of gravity acting on an object, so as long as gravity is present, the object will have weight.
What must happen for an astronaut to appear weightless?
He (or she) must float motionless and unattached to any object or cable.
Why an object becomes weightless in outer spaceaway from any planet or star?
Gravitational forces are much reduced by distance. Also, they would be fairly well balanced in all directions. However, there would probably still be some detectable gravitational force. The other definition of "weightless" is when an object is still in a gravitational field, but in "free fall". That's why astronauts orbiting Earth are "weightless".
