what comes into play when an object is sliding over the other object
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The maximum fictional force present between any two objects when one object just tends to move or slip over the surface of the other object ,is called static friction.Static friction is a kind of starting fiction because an object just tends to start moving, it does not actually move.
Activity
A wooden block is kept on the horizontal surface of a table.A spring balance is attached to the hook of wooden block.We pull the spring balance to the right side with a small force of our hand.This will exert a force on the wooden block.The wooden block, however does not move because its motion is being opposed by the force of friction which acts in the opposite direction.As we increase the pulling force applied to the wooden block ,the friction also goes on increasing. When the applied force becomes a little more than the maximum frictional force
Activity
A wooden block is kept on the horizontal surface of a table.A spring balance is attached to the hook of wooden block.We pull the spring balance to the right side with a small force of our hand.This will exert a force on the wooden block.The wooden block, however does not move because its motion is being opposed by the force of friction which acts in the opposite direction.As we increase the pulling force applied to the wooden block ,the friction also goes on increasing. When the applied force becomes a little more than the maximum frictional force
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