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A body of mass 2 kg is kept by pressing to a vertical wall by a force of 100 N. The coefficient of friction between wall and body is 0.3. Then the frictional force is equal to?
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A body of mass 2 kg is kept by pressing to a vertical wall by a force ...
Calculation of Frictional Force
Frictional force is the force that resists the motion of an object when in contact with another object. In this scenario, the body is pressed against a vertical wall with a force of 100 N.

Normal Force
The normal force acting on the body is equal in magnitude but opposite in direction to the force applied perpendicular to the wall. In this case, the normal force is equal to the force applied, which is 100 N.

Coefficient of Friction
The coefficient of friction between the wall and the body is given as 0.3. This value represents the ratio of the frictional force to the normal force.

Calculating Frictional Force
The frictional force can be calculated using the formula:
Frictional force = coefficient of friction x normal force
Frictional force = 0.3 x 100 N
Frictional force = 30 N
Therefore, the frictional force acting on the body pressed against the wall is equal to 30 N. This force opposes the motion of the body and prevents it from sliding down the wall.
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A body of mass 2 kg is kept by pressing to a vertical wall by a force of 100 N. The coefficient of friction between wall and body is 0.3. Then the frictional force is equal to?
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