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Statement I: A block of mass m is placed...

Statement I: A block of mass m is placed on a smooth inclined plane of inclinaton `theta` with the horizontal. The force exerted by the plane on the block has a magnitude `mg cos theta`.
Statement II: Normal reaction always acts perpendicular to the contact surface.

A

Statement I is true, statement II is true, Statement II is the correct explanation for statement I.

B

Statemet I is true, Statement II is true , Statement II is NOT the correct explanation for Statement I

C

Statement I is True, Statement II is False.

D

Statement I is False, Statement II is true

Text Solution

Verified by Experts

The correct Answer is:
A
In the direction of normal reation, net acceleration is zero. Hence, forces in this direction will be balanced. Hence `N=mg cos theta`.
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