Is normal reaction a conservative force and work done by it is always

1.	Is normal reaction a conservative force and work done by it is always zero?
Answer» Answer: No work is DONE by FN. EVEN for a block sliding up or down an incline, the normal force does no work. The normal force by definition is perpendicular to the surface, and the block SLIDES along the surface; no COMPONENT of the normal force is parallel to the motion.

Is normal reaction a conservative force and work done by it is always zero?

Answer»

Answer:

No work is DONE by FN. EVEN for a block sliding up or down an incline, the normal force does no work. The normal force by definition is perpendicular to the surface, and the block SLIDES along the surface; no COMPONENT of the normal force is parallel to the motion.

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Is normal reaction a conservative force and work done by it is always zero?

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