JEE Main 2022 Physics question
A block 'A' takes 2 s to slide down a frictionless incline of 30° and length , kept inside a lift going up with uniform velocity 'v'. If the incline is changed to 45°, the time taken by the block, to slide down the incline, will be approximately
Answer: (3)
Solution
The lift moves with uniform velocity, so the effective g is unchanged. The acceleration along the incline is sin30° = 5 and $ =
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