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How much force is required to push someone?
The force required to push someone will depend on factors such as their weight, inertia, and the surface friction. In general, the force needed will be greater if the person is heavier or if they are standing still.
What friction is greater than sliding friction?
Static friction is greater than sliding friction. Static friction occurs when an object is at rest and an external force is being applied to move it, requiring a greater force to overcome the initial resistance compared to when the object is already in motion and experiencing sliding friction.
What are 5 examples of unbalanced forces?
Anything that is accelerating or decelerating because it is only balanced when something is moving at a constant speed.
How is force and friction related?
The Force of friction is equal to the coefficient of friction times the normal force. Since normal force is equal to mass times the acceleration of gravity (9.8 m/s2), the force of friction is directly proportional to the mass.
Is the force needed to overcome kinetic friction greater than static friction?
No, the force needed to overcome static friction is generally greater than the force needed to overcome kinetic friction. Static friction occurs when two surfaces are at rest relative to each other, requiring more force to overcome the initial "sticking" friction. Once the surfaces are in motion, kinetic friction occurs and typically requires less force to maintain motion.
How much force is required to push someone?
The force required to push someone will depend on factors such as their weight, inertia, and the surface friction. In general, the force needed will be greater if the person is heavier or if they are standing still.
Who needs a bigger force to keep them moving a man or a child?
It depends. If you want to lift them up, you have to act a force equal to their weight, so a heavier person would need a force with greater magnitude. If you want to move them horizontally on a plane with friction the heavier person needs a force with greater magnitude again. On a plane without friction no force needs to be acting on them in order to move.
What friction is greater than sliding friction?
Static friction is greater than sliding friction. Static friction occurs when an object is at rest and an external force is being applied to move it, requiring a greater force to overcome the initial resistance compared to when the object is already in motion and experiencing sliding friction.
What is the relationship between mass and force of sliding friction?
The force of sliding friction is directly proportional to the mass of the object experiencing the friction. As the mass increases, the force of sliding friction also increases. This relationship is described by the equation: force of friction = coefficient of friction * normal force, where the normal force is equal to the weight of the object (mass * acceleration due to gravity).
What does a force have to be than friction?
If you wish to actually move an object, some other force on the object has to be greater than the force of friction.
What are 5 examples of unbalanced forces?
Anything that is accelerating or decelerating because it is only balanced when something is moving at a constant speed.
How is force and friction related?
The Force of friction is equal to the coefficient of friction times the normal force. Since normal force is equal to mass times the acceleration of gravity (9.8 m/s2), the force of friction is directly proportional to the mass.
Is the force of friction greater between two children on a sled and the snow or between only one of the children on the same sled and the snow?
The force of friction is proportional to the force which surfaces press against each other. Since two people will cause the sled to push harder on the snow then one person, the friction will be greater for two people on the sled.
Is the force needed to overcome kinetic friction greater than static friction?
No, the force needed to overcome static friction is generally greater than the force needed to overcome kinetic friction. Static friction occurs when two surfaces are at rest relative to each other, requiring more force to overcome the initial "sticking" friction. Once the surfaces are in motion, kinetic friction occurs and typically requires less force to maintain motion.
Is friction a greater force when motion is faster?
Friction is not affected by the speed of motion. The force of friction remains constant regardless of the speed of the objects in contact.
What does a coefficient of friction of 1.0 or greater mean?
A coefficient of friction of 1.0 or greater means that the force required to move an object along a surface is equal to or greater than the force pressing the object onto the surface. In practical terms, this indicates a high level of resistance to movement, requiring a significant amount of force to overcome the friction between the two surfaces.
Is there a force that can go against friction?
No. Friction can only slow an object down. If friction were imparting a force greater than that of the applied forces, then friction in and of itself would actually be causing the object to move, which does not happen.
