A Mass M Is Hanging on a String That Passes

question 40

Multiple Choice

A mass m is hanging on a string that passes over a pulley and is then attached to another mass 3m that is resting on a horizontal table. Neglect friction. Mass m is held motionless and is then released. When it has fallen a distance h, it will have a speed v which can be calculated from the formula

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Definitions:

Electroconvulsive Therapy (ECT)

A medical treatment most commonly used for severe depression, involving electrical stimulation of the brain under anesthesia.

Severe Depression

A mental health disorder characterized by persistently depressed mood or loss of interest in activities, causing significant impairment in daily life, more intense than general depression.

Obsessive-Compulsive Disorder

A mental health disorder characterized by unwanted repetitive thoughts (obsessions) and actions (compulsions).

Psychosurgery

Surgical operations on the brain aimed at relieving severe mental disorders.