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What is the magnitude of the force on an object in free fall near the earths surface?
-- The force of gravity near the surface of the Earth is close to 9.8 newtons (2.205 pounds)
per kilogram of mass.
-- "Free fall" means no other forces acting on the object besides gravity. If that's true,
then the object's acceleration is 9.8 meters per second2 downward.
-- In reality, it's very difficult to achieve real free fall because of air resistance.
The effect of air resistance is a force on the object that depends on its speed,
shape and size, and acts in the direction opposite to the object's motion.
Considering an object in fall, the force of air resistance acts opposite to the force of
gravity. So the combined magnitude of both forces is less than the force of gravity
alone. That means the object's acceleration is something less than the acceleration
of gravity. When it reaches the speed where the force of gravity and the force of air
resistance are equal, the combined magnitude of both forces is zero, the object stops
accelerating, and falls from there at a constant speed, called "terminal velocity".
What else can I help you with?
The normal force is the force that a surface exerts when you move an object over it true or false?
True. The normal force is the force exerted by a surface on an object in a direction perpendicular to the surface. It is equal in magnitude and opposite in direction to the force applied by the object on the surface.
How do you calculate the magnitude of normal force?
The magnitude of the normal force can be calculated using Newton's second law. It is equal in magnitude but opposite in direction to the force pressing the object against a surface, such as gravity acting downwards on an object resting on a flat surface. The normal force helps balance out the forces acting on an object in a given direction.
How can one determine the magnitude of the normal force acting on an object?
To determine the magnitude of the normal force acting on an object, you can use the equation: Normal force mass x acceleration due to gravity. The normal force is the force exerted by a surface to support the weight of an object resting on it. It acts perpendicular to the surface.
Is the reaction force on a surface always perpendicular to the surface?
No, the reaction force on a surface can be at an angle, especially if there are other forces acting on the object. The reaction force is always equal in magnitude and opposite in direction to the force applied by the object on the surface.
An object at rest on the earths surface has two forces acting upon it what are they and why doesnt the object move?
The two forces acting on the object are gravity pulling it downward and the normal force pushing up against gravity. These forces are equal in magnitude, resulting in a net force of zero and causing the object to remain at rest due to Newton's first law of motion.
The normal force is the force that a surface exerts when you move an object over it true or false?
True. The normal force is the force exerted by a surface on an object in a direction perpendicular to the surface. It is equal in magnitude and opposite in direction to the force applied by the object on the surface.
How do you calculate the magnitude of normal force?
The magnitude of the normal force can be calculated using Newton's second law. It is equal in magnitude but opposite in direction to the force pressing the object against a surface, such as gravity acting downwards on an object resting on a flat surface. The normal force helps balance out the forces acting on an object in a given direction.
How can one determine the magnitude of the normal force acting on an object?
To determine the magnitude of the normal force acting on an object, you can use the equation: Normal force mass x acceleration due to gravity. The normal force is the force exerted by a surface to support the weight of an object resting on it. It acts perpendicular to the surface.
Definition of normal force?
The normal force is the force exerted by a surface on an object in contact with it, perpendicular to the surface. It is equal in magnitude and opposite in direction to the force the object exerts on the surface due to Newton's third law.
Is the reaction force on a surface always perpendicular to the surface?
No, the reaction force on a surface can be at an angle, especially if there are other forces acting on the object. The reaction force is always equal in magnitude and opposite in direction to the force applied by the object on the surface.
An object at rest on the earths surface has two forces acting upon it what are they and why doesnt the object move?
The two forces acting on the object are gravity pulling it downward and the normal force pushing up against gravity. These forces are equal in magnitude, resulting in a net force of zero and causing the object to remain at rest due to Newton's first law of motion.
What is the pushing force acting upwards from the ground?
The pushing force acting upwards from the ground is called the normal force. It is a reaction force that occurs when an object is in contact with a surface and prevents the object from falling through the surface. The normal force is equal in magnitude and opposite in direction to the force exerted by the object on the surface.
If an object is placed on a flat surface the what is straight up and equal to tr weight of the object?
The normal force exerted by the surface on the object is straight up and is equal in magnitude to the weight of the object.
What the normal force is for an object on a flat surface?
The normal force for an object on a flat surface is equal in magnitude and opposite in direction to the force of gravity acting on the object. It is responsible for balancing out the gravitational force to keep the object stationary or in equilibrium on the surface.
What is the gravitational force on any object near the earths surface?
Force (newtons) = mass (kg) * acceleration (m/s/s) > Acceleration at earths surface radius = 9.82 m/s/s
What does support force do in physics?
A support force in physics is a reaction force that acts to prevent an object from falling through a surface. It is typically exerted by a solid surface such as the ground or a table in response to the weight of an object resting on it. This force is equal in magnitude but opposite in direction to the force of gravity acting on the object.
What is equal to force perpendicular?
Force perpendicular is equal to the force component that acts perpendicular to a surface or object. It is calculated by multiplying the force magnitude by the sine of the angle between the force vector and the direction perpendicular to the object.
