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It doesn't, since the conditions don't apply. The conditions for Newton's First Law are that there is no net force on an object - there must be no force on the object, or the vector sum of the forces must be zero.
When you dribble a basketball then you are causing the momentum to go downward. When the basketball hits the ground the opposite reaction occurs and the basketball goes upward.
Kinetic energy of a falling object can be calculated for a specific height at a specific point since a falling body accelerates which means that it's velocity is changing every moment. To calculate the kinetic energy of a falling body at a certain height, we should know the mass of the body and its velocity at that point.Then we can apply the following formula: K.E. of an object = 1/2(mv2)
You apply a force to the object.You apply a force to the object.You apply a force to the object.You apply a force to the object.
Lift any object. Grav. force is acting down, you must apply an upward force to lift the object. Work is force applied through a distance, so work is done if you lift it, but not if you hold it still.
If the forces on an object are balanced, it won't move. This would apply to a captive balloon, held to the ground by a rope. The upward force of the balloon's buoyancy is balanced by a downward force in the rope, and these must be equal. The same argument for you sitting still in your chair, your weight is balanced by an upward force in the chair.
It doesn't, since the conditions don't apply. The conditions for Newton's First Law are that there is no net force on an object - there must be no force on the object, or the vector sum of the forces must be zero.
The normal force is what prevents an object from falling through the ground. The force of gravity is equal to the product of the mass and acceleration due to gravity, so the ground that the object sits on must apply an equal force in the opposite direction (Newton's Third Law), other wise the object would fall through.
laws of accelerated motion and falling bodies
When you dribble a basketball then you are causing the momentum to go downward. When the basketball hits the ground the opposite reaction occurs and the basketball goes upward.
The same way you walk up a flight of stairs while gravity attracts you toward earth ... you apply an upward force to the object that's greater than the downward force of gravity. When you do that, the net force on the object is upward, and it accelerates away from the earth.
Kinetic energy of a falling object can be calculated for a specific height at a specific point since a falling body accelerates which means that it's velocity is changing every moment. To calculate the kinetic energy of a falling body at a certain height, we should know the mass of the body and its velocity at that point.Then we can apply the following formula: K.E. of an object = 1/2(mv2)
You apply a force to the object.You apply a force to the object.You apply a force to the object.You apply a force to the object.
Lift any object. Grav. force is acting down, you must apply an upward force to lift the object. Work is force applied through a distance, so work is done if you lift it, but not if you hold it still.
[object Object]
you can push the object or you can pull the object
The moon is the closest heavenly body to the earth and because of its relatively high albedo it reflects a lot of the light falling on it hence it is the brightest object in the night sky. Similar reasons also apply to Venus, which is also a very bright object.