A smooth inclined plane of length L, having an inclination with horizontal is inside a…
Physics · JEE Main · NTA Exams — Laws of Motion
A smooth inclined plane of length L, having an inclination \(\theta\) with horizontal is inside a lift which is moving down with retardation a. The time taken by a block to slide down the inclined plane from rest will be:
- \(\sqrt{\frac{2 L}{a \sin \theta}}\)
- \(\sqrt{\frac{2 L}{g \sin \theta}}\)
- \(\sqrt{\frac{2 L}{(g-a) \sin \theta}}\)
- \(\sqrt{\frac{2 L}{(g+a) \sin \theta}}\)
Answer
(D) 2 L (g+a)
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