False. Objects in free fall are still subject to the force of gravity, so they have weight. However, they experience weightlessness because they are in a state of constant acceleration towards the Earth, causing the sensation of weightlessness.
False. In the absence of air resistance, all objects fall at the same rate regardless of their mass. This is known as the principle of universality of free fall.
Objects in freefall are not weightless; they still have mass and therefore experience the force of gravity. However, in freefall, they are accelerating towards the Earth due to gravity, which gives the sensation of weightlessness as the force of gravity is canceled out by the acceleration.
Yes. An object is weightless if gravity is the only force acting on it. (for example, a ball falling in a vacuum) There is no true "weightlessness", because, even if two masses are separated by billions of light years, there is still a gravitational attraction force. There is a distance at which this cannot be felt anymore, but there is still a force.
Something can only be weightless in zero gravity.
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.
Faulse
False. In the absence of air resistance, all objects fall at the same rate regardless of their mass. This is known as the principle of universality of free fall.
Actually they don't they fall on towards Earths crust.
Objects in freefall are not weightless; they still have mass and therefore experience the force of gravity. However, in freefall, they are accelerating towards the Earth due to gravity, which gives the sensation of weightlessness as the force of gravity is canceled out by the acceleration.
Yes. An object is weightless if gravity is the only force acting on it. (for example, a ball falling in a vacuum) There is no true "weightlessness", because, even if two masses are separated by billions of light years, there is still a gravitational attraction force. There is a distance at which this cannot be felt anymore, but there is still a force.
The statement, "not every walking or working surface can be a potential fall hazard," is false.
True.
False, Fall is to Winter or the answer could be Fall is to Summer as Monday is to Sunday.
false
false
False
Only from the object's frame of reference 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.Read more: http://wiki.answers.com/Are_objects_in_a_free-fall_completely_weightless#ixzz1qT6isfR7