A Body Oscillates with Simple Harmonic Motion Along the X $\pi$

question 8

Multiple Choice

A body oscillates with simple harmonic motion along the x axis.Its displacement varies with time according to the equation x = 5.0 sin ( $\pi$ t + $\pi$ /3) .The velocity (in m/s) of the body at t = 1.0 s is

• A)+7.9
• B)-7.9
• C)-14
• D)+14
• E)-5.0

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Definitions:

Semantic Codes

A type of cognitive encoding that involves the storage of information in memory according to its meaning rather than the sound or vision of it.

STM Loss

Short-Term Memory loss; a condition where an individual has difficulty retaining recent information over short periods.

Decay Theory

The hypothesis that memories fade or are lost over time as a result of the mere passage of time, leading to forgetting.

Memories Deteriorate

The process by which stored memories become less vivid, accurate, or accessible over time.