All bodies with mass are attracted to the Earth by gravity, so when a body is raised you must do work to raise it. This work is equal to force x height, if force is in Newtons and height in meters, the work is in units of Joules.
In physics, work is performed when a force is applied to an object and causes it to move in the direction of the force. In this scenario, the man lifting the box is applying a force to move the box upwards against the force of gravity. The work done is equal to the force applied multiplied by the distance the box is lifted.
When the only force on an object is the force of gravity,we say that the object is in "free fall".
Work is said to be done when a force is applied to an object and the object moves in the direction of the force. Work, in a scientific context, is the product of force and the distance over which the force is applied.
free fall.
When there is no net force of gravity, all the opposing forces of gravity cancel out. For example, most of the way to the moon, the gravity pulling from the moon would cancel out the gravity from the Earth. At that point, there would be no net force of gravity. KEEP IN MIND, that this is something very different from the weightless feeling you get when falling. When falling, gravity still affects you (hence you accelerate downwards). If there is no net force of gravity, gravity will not affect you at all.
In physics, work is performed when a force is applied to an object and causes it to move in the direction of the force. In this scenario, the man lifting the box is applying a force to move the box upwards against the force of gravity. The work done is equal to the force applied multiplied by the distance the box is lifted.
Earths gravity acts on everything from its center of gravity to everything else's center of gravity.
When the only force on an object is the force of gravity,we say that the object is in "free fall".
It is said to be in free fall.
Work is said to be done when a force is applied to an object and the object moves in the direction of the force. Work, in a scientific context, is the product of force and the distance over which the force is applied.
Such an object is said to be in free fall.
In free fall
Gravity or the force of you sucking/blowing on said straw.
free fall.
The object is said to be in free fall, such as in orbit.
When there is no net force of gravity, all the opposing forces of gravity cancel out. For example, most of the way to the moon, the gravity pulling from the moon would cancel out the gravity from the Earth. At that point, there would be no net force of gravity. KEEP IN MIND, that this is something very different from the weightless feeling you get when falling. When falling, gravity still affects you (hence you accelerate downwards). If there is no net force of gravity, gravity will not affect you at all.
gravity (studyisland answer)