A Body of Mass 5 $\pi$ /6)
Where the Units Are SI

question 122

Multiple Choice

A body of mass 5.0 kg moves in simple harmonic motion according to the equation
X = 0.040 sin(30t + $\pi$ /6)
Where the units are SI. The maximum speed of this body is approximately

• A) 0.013 m/s
• B) 0.40 m/s
• C) 0.60 m/s
• D) 1.2 m/s
• E) 30 m/s

---

Definitions:

Zajonc's Theory

A psychological theory suggesting that mere exposure to a stimulus can improve one's feelings toward it, indicating that emotional responses can be developed without prior cognitive processing.

Social Loafing

The phenomenon where individuals exert less effort when working in a group than when working alone.

Pounds Of Force

A unit of force in the imperial system, symbolized as lbf, equivalent to the force exerted by gravity on a one-pound mass.

Norm Of Reciprocity

The social standard that suggests that a favor must be repaid.