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Physics · WORK, ENERGY AND POWER
हिन्दीA block of mass \( m \) is released from rest at the top of a smooth inclined plane of height \( h \). If the angle of inclination of the plane is doubled while keeping the vertical height \( h \) fixed, the speed of the block at the bottom of the plane will:
Correct answer · Option 2
remain completely unchanged
Explanation
For a conservative gravitational force, the speed at the bottom of a frictionless incline is \( v = \sqrt{2gh} \), which depends only on the vertical height \( h \) and is independent of the angle of inclination.
