A 40-Kg Mass, Initially at Rest on a Horizontal Frictionless Surface

question 87

Multiple Choice

A 4.0-kg mass, initially at rest on a horizontal frictionless surface, is struck by a 2.0-kg mass moving along the x axis with a speed of 8.0 m/s. After the collision, the 2.0-kg mass has a speed of 4.0 m/s at an angle of 37° from the positive x axis. What is the speed of the 4.0-kg mass after the collision?

• A) 2.0 m/s
• B) 2.7 m/s
• C) 4.9 m/s
• D) 2.4 m/s
• E) 3.6 m/s

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Definitions:

Commit Suicide

The act of deliberately taking one's own life. It's a serious public health problem that often stems from deep emotional or mental distress.

Schizophrenia

A long-term mental disorder involving a breakdown in the relation between thought, emotion, and behavior, leading to faulty perception and inappropriate actions and feelings.

Schizophreniform Disorder

Disorder in which individuals meet the primary criteria for schizophrenia but show symptoms lasting only 1 to 6 months.

Schizoaffective

A mental health condition that exhibits symptoms of both schizophrenia and mood disorders.