kavya is unable to differentiate static friction and sliding friction to understand clearly which doubts she could ask teacher
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Answer:a plane mirror is a shiny surface which reflects the Ray's back
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'Static' means 'not moving'
Static Friction : The friction offered by the surface when the body is not moving is called static friction.
eg: If you push a heavy block and it doesnt move, then the frictional force (offered by the floor in contact with the block) is equal to the force applied by you and it is called static friction.
Sliding friction : It is the friction force offered by the surface when the body is in motion.
eg: If you push a block on rough surface and the block also slides on the surface, then the frictional force offered by the surface is called sliding friction or kinetic friction.
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