STANDARDPhysics-Work, Energy and Power
STANDARD Physics Conservation of Energy MCQ Question
Type: MCQ-conceptual-Medium-Class 11
An object of mass m is released from rest from the top of a smooth inclined plane of height h. Its speed at the bottom of the plane is proportional to
A
m⁰
B
m
C
m²
D
m⁻¹
Correct Answer
Option A
Detailed Explanation
Using the work-energy theorem, mgh = 1/2 mv². Solving for v gives v = √(2gh), showing that v is independent of the mass m, hence proportional to m⁰.
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