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When you stand on level ground the normal force is equal to your what?
Wiki User
∙ 11y ago
The key here is that you're standing on levelground. You should recall the basic principle that net forces change motion. Since your motion is not changing relative to the earth (You're standing still), there must be no net force acting on you. In other words, all forces acting on you must cancel out. If you weigh 100 kilograms, then the downward force of gravity is equal to 980 Newtons in the downward direction. If the only other force acting on you is the normal force, then to cancel out the gravitational force, the normal force must be equal and opposite, or 980 Newtons in the upward direction.
Wiki User
∙ 11y ago
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Does magnitude of normal force always equal the weight of the object?
No, not always directly opposite. The normal force is always perpendicular to the surface. So for a flat ground it will be directly opposite gravity or Weight.If you had an object on a ramp the normal force would be a diagonal line that is perpendicular with the ramp.
Name the forces acting on a plastic bucket containing water held above the ground level in your handdiscuss why the forces acting on the bucket do not bring change in its state of motion?
If it is held stationary, there will be the downward force of gravity, and the upward (normal) force from your hand. The reason that the bucket does not move is because the forces are equal and opposite.
What force pulls an aircraft toward the ground acts against the force of lift in level flight?
Gravity
When an object is pulling across a level surface at a constant velocity what force is the pulling force equal to?
Friction.
What force acts against the gravitational force that is in the upward direction?
In physics, there is a force that is called the normal force. This is the force that comes from a surface pushing up on an object. If the surface is level, the normal force is the exact same magnitude as the gravitational force, but straight up. The normal force is always perpendicular to a surface. Hope this helps!
Does magnitude of normal force always equal the weight of the object?
No, not always directly opposite. The normal force is always perpendicular to the surface. So for a flat ground it will be directly opposite gravity or Weight.If you had an object on a ramp the normal force would be a diagonal line that is perpendicular with the ramp.
What is difference between original ground level and normal ground level?
hi
How much lift does it take for an airplane to get off the ground?
In order to lift off the ground, the lift force (the upward force generated by the wings) has to be at least as great as the weight of the aircraft. Lift and weight are opposing forces and are equal in straight and level flight.
Name the forces acting on a plastic bucket containing water held above the ground level in your handdiscuss why the forces acting on the bucket do not bring change in its state of motion?
If it is held stationary, there will be the downward force of gravity, and the upward (normal) force from your hand. The reason that the bucket does not move is because the forces are equal and opposite.
What is The relationship between weight and frictional force?
Weight is extremely useful in determining the frictional force on an object. Say we have a box on a level surface. The box has a weight of mg(mass times the gravitational constant). Since the box is still, and it is being supported by the ground, there is an equal and opposite force that is being exerted on the box by the ground, which pushes it up. This is known as the normal force. The force of Friction is defined as the greek letter mu(which is the coefficient of friction for the two materials against each other)times the normal force, which in this case is mg. Mu also varies depending on wether or not the box is moving in contact with the ground. A different coefficeint of friction is used instead of the one when the box is at rest. The frictional force on the object is always greater when the object is at rest than when it is sliding. Hope this helps!
What force pulls an aircraft toward the ground acts against the force of lift in level flight?
Gravity
When an object is pulled on a level surface at a constant velocity what force is the pulling force equal to?
If there is no friction or anything that can impede the movement off the object, then the force is zero. If there is friction, then the force is equal to that of the friction.
When an object is pulling across a level surface at a constant velocity what force is the pulling force equal to?
Friction.
What force acts against the gravitational force that is in the upward direction?
In physics, there is a force that is called the normal force. This is the force that comes from a surface pushing up on an object. If the surface is level, the normal force is the exact same magnitude as the gravitational force, but straight up. The normal force is always perpendicular to a surface. Hope this helps!
Do force exist to object at rest?
There CAN be, as long as the force is being counterd by an equal and opposite force.
When a plane is landing is it pointing downwards?
No, a plane will always under normal circumstances land 'straight and level', ie. in line/level with the ground.
What is the friction force for on a sliding 10kg textbook that has a kinetic friction coefficient of 0.1?
Ff=µFn Ff is force of friction µ is the coefficient of friction Fn is the normal force Normal force is the force that keeps things from going through each other. It is perpendicular to the surface the text book is sitting on, and equal to all forces perpendicular to and pushing against it. Assuming the text book is on a flat, level table on earth, the forces that the Normal force counteracts would be simple: gravity. So Fg=9.8*10 Fn=98 and.. Ff=.1*98 is: 9.8
