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What is meant by normal reaction? |
| Answer» NORMAL reaction. [′nȯr·məl rē′ak·shən] (mechanics) The force exerted by a SURFACE on an object in CONTACT with it which prevents the object from passing through the surface; the force is PERPENDICULAR to the surface, and is the only force that the surface exerts on the object in the ABSENCE of frictional forces. | |