If an external force and the frictional force are acting on a body, which is in rest on the floor, and are equal and opposite, then the frictional force is:

rolling friction.

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sliding friction.

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static friction.

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Both B and C

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Solution

The correct option is B static friction.
Static friction is the friction between two objects in contact that are not moving.
Static friction is generally greater than kinetic friction and must be overcome before an object can be set in motion.

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Similar questions

Q. What is the value of frictional force acting on a body if no external force is acting on it?

Q. Assertion :A disk is rolling on the rough ground under the application of some external force is performing pure rolling, then friction force (if acting) acts as a conservative force. Reason: Kinetic friction force is sometimes nondissipative.

Q. If we apply a force towards right on a body kept at rest on floor, frictional force will act:

Q. Read the following two statements and then identify the correct choice of the given answers.
A : The frictional force acting on a body of mass m which is at rest on a horizontal surface of coefficient of static friction

^{'} μ_{s}^{'}

μ_{s} m g

in the absence of external force.
B : The frictional force acting on a body of mass m which is at rest on a rough inclined surface of angle of inclination

θ

is mg sin

θ

It is stated that every action has a equal and and opoosite direction so if a body is at rest and there there is no net externel force acting on it so there are any other force acting on the body like frictional is the force acts when only a body is in motion

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If an external force and the frictional force are acting on a body, which is in rest on the floor, and are equal and opposite, then the frictional force is:

The correct option is B static friction.Static friction is the friction between two objects in contact that are not moving. Static friction is generally greater than kinetic friction and must be overcome before an object can be set in motion.

The correct option is B static friction.
Static friction is the friction between two objects in contact that are not moving.
Static friction is generally greater than kinetic friction and must be overcome before an object can be set in motion.