A ball can be rolled down one of four different ramps,as shown below.The final elevation loss of each of the ramps is the same.Neglecting friction,for which ramp will the speed of the ball be the highest at the bottom? 
Definitions:
DSM-IV
The Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, a handbook used by healthcare professionals in diagnosing mental disorders.
Personality Disorders
A group of mental disorders characterized by long-term unhealthy patterns of thought and behavior, significantly impairing social functioning.
Mental Retardation
An outdated and now considered offensive term for intellectual disability, which is characterized by significant limitations in intellectual functioning and adaptive behavior.
Psychiatric Diagnosis
The identification of mental disorders based on symptom patterns, often used to guide treatment and management.
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