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What is the brakes are applied on a moving carthe frictional partsbrakes or are forced against the rotating parts of the carbrake or?
Wiki User
∙ 9y ago
the partsbreaks are is better than much of most things cant feel while being used.
Wiki User
∙ 9y ago
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What is a force of resistance that occurs when the surface of one object slides against the surface of another object?
Friction is a force of resistance against another object. Example: A sled against mud. Another Example: A sock against the carpet sliding friction
Can you lean against a wall if frictional forces are absent?
you can lean against a wall because it's pushing back
What frictional forces help a bike to move?
The wheels against the ground, the axles against the wheels, the chain against the axles, the pedals against the chain, and your feet against the pedals.
Why does amoving ball stops after sometime?
It loses its kinetic energy as it does work against frictional force
Where does dissipated energy go as in matter and anti-matter annihilation?
the dissipated energy is lost as heat, as well as it is dissipated to do the work against frictional forces.
What is a force of resistance that occurs when the surface of one object slides against the surface of another object?
Friction is a force of resistance against another object. Example: A sled against mud. Another Example: A sock against the carpet sliding friction
Can you lean against a wall if frictional forces are absent?
you can lean against a wall because it's pushing back
What frictional forces help a bike to move?
The wheels against the ground, the axles against the wheels, the chain against the axles, the pedals against the chain, and your feet against the pedals.
Why does amoving ball stops after sometime?
It loses its kinetic energy as it does work against frictional force
Which force acts against speed?
Frictional force acts against speed of any object.
How is an object affected when it rubs against another object?
One effect is the frictional heating of both objects.
What is the name of the force that always acts against the direction of movement?
In geneal frictional force. If it rubs against a surface then it is known to be friction. If it drags the moving body then it is said to be viscous drag.
What is frictional force and its uses?
Friction is a force that is generated when two surfaces rub against each other. It is useful for preventing slipping or sliding.
Does disk and drum brakes work exactly the same?
No. Drum brakes expand inside a rotating drum to stop the vehicle, disc brakes squeeze in against a rotating disc.
Where does dissipated energy go as in matter and anti-matter annihilation?
the dissipated energy is lost as heat, as well as it is dissipated to do the work against frictional forces.
How friction is useful in pushing a car?
If you are behind a car, about to push it forward from a resting position, you will need to exert a force on the car to accelerate it from resting position. While you are pushing against the car, however, there will be a reaction force pushing back at you. In order to produce a large net force against the car without being pushed backward yourself, you need to increase the friction of your feet against the ground...so that the frictional force between your feet and the ground prevents you from sliding backward. The combinations of the frictional force and your force pushing forward against the car will cause the car to move forward. The frictional force of the car being moved from resting position also has to be overcome, of course.
What is the minimum angular velocity and corresponding linear velocity of the cylinder that will hold the passengers firmly against the wall when the floor drops out?
The frictional force fs the cylinder wall generates needs to at least match the rider's weight W, thereby preventing the rider from slipping out of the rotating cage. The size of this frictional force is proportional to the normal force FN with which the wall presses against the rider to keep him/her on a circular track (this force is equal and opposite to the force the force with which the rider presses against the wall: action = reaction). This normal force has to be equal to the centripetal acceleration required to keep the rider on a circular track traveling in the cylinder of radius R at an angular velocity. Therefore we have the following three equations for the forces acting on the rider: W = mg FN = m omega 2 R fs = U s FN
