Question

normal force will be maximum while​

Answer 1

Answer:

The "Maximum Normal force" is defined the "Normal force" exerted on the body/surface when the body/surface couldn't resist deformation/peneteration anymore. Now this new quantity(Maximum normal force) is a function of both elastic body's and elastic surface's intrinsic properties.

Answer 2

$\bold{Answer}$

A force acting perpendicular to two surfaces in contact with each other. ... If weight is the only vertical force acting on an object lying or moving on a horizontal surface, the normal reaction force is equal in magnitude, but opposite in direction to the weight. Friction, therefore, is increased by increasing the weight.

Explanation:

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