As the angle of a smooth inclined plane is gradually increased from to
PHYSICS · Single correct · CBSE · Physics · Laws of Motion · Laws of Motion
Problem
As the angle of a smooth inclined plane is gradually increased from 0∘ to 90∘, how does the normal reaction N exerted by the plane on a block of fixed mass placed on it change?
(a) N increases continuously.
(b) N is zero for all angles.
(c) N decreases continuously.
(d) N remains constant at mg.