NEET 2004 Physics question
A block of mass m is placed on a smooth wedge of inclination . The whole system is accelerated horizontally so that the block does not slip on the wedge. The force exerted by the wedge on the block (g is acceleration due to gravity) will be :-
Answer: (3)
Solution
The wedge is smooth, so the only force it exerts on the block is the normal reaction , perpendicular to the incline (making angle with the vertical). The block has no vertical acceleration, so
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