A Large Wedge with a Mass of 10 Kg Rests

question 27

Multiple Choice

A large wedge with a mass of 10 kg rests on a horizontal frictionless surface, as shown. A block with a mass of 5.0 kg starts from rest and slides down the inclined surface of the wedge, which is rough. At one instant the vertical component of the block's velocity is of 3.0 m/s and the horizontal component is 6.0 m/s. At that instant the velocity of the wedge is:

• A) 3.0 m/s left
• B) 3.0 m/s, right
• C) 6.0 m/s, right
• D) 6.0 m/s, left
• E) 17 m/s, right

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Definitions:

Mood Disorders

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Behavior Therapy

A type of psychotherapy that aims to modify negative behaviors and emotional responses through reinforcement strategies and conditioning.

Functional Analysis

A method used in behavioral psychology to identify the antecedents and consequences of a behavior in order to understand its purpose or function.

Suicide

The deliberate act of taking one's own life.