JEE Main Physics question
**Statement I:** The acceleration of a body down a rough inclined plane is greater than the acceleration due to gravity. **Statement II:** The body is able to slide on an inclined plane only when its acceleration is greater than the acceleration due to gravity.
Answer: (D)
Solution
On a rough incline, a = g(sinθ − μcosθ), which is always less than (or at most equal to) g sinθ ≤ g — friction can only reduce the acceleration below g, never increase it beyond g, so Statement I is false.
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