Question

Consider an object of mass 2.5kg resting on the floor. What is the normal

force acting on it?
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Answer 1

Answer:

when an object is still not only one but many forces acts on it

general forces are GRAVITY

and the NRF that is the normal reaction force opposite to Gravity with equal magnitude

similarly many such forces are there which donot create any effect because they have equal and oppoite forces which cancel them outand Net force became 0