At the Instant a 2

question 8

Multiple Choice

At the instant a 2.0-kg particle has a velocity of 4.0 m/s in the positive x direction, a 3.0-kg particle has a velocity of 5.0 m/s in the positive y direction. What is the speed of the center of mass of the two-particle system?

• A) 3.8 m/s
• B) 3.4 m/s
• C) 5.0 m/s
• D) 4.4 m/s
• E) 4.6 m/s

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Definitions:

Stimulate Trial

Marketing efforts aimed at encouraging potential customers to try a product or service for the first time.

Vaginismus

A condition where there is an involuntary contraction of the vaginal muscles, making penetration painful or impossible.

Dyspareunia

Painful intercourse experienced by either sex, but more commonly reported by women.

Sexual Aversion Disorder

A sexual function disorder characterized by a consistently phobic response to sexual activities or the idea of such activities.