How does the speed and magnitude of acceleration change, when a particle performing simple harmonic motion moves from mean position to one of its extreme positions ?
A
Speed increases, magnitude of acceleration decreases
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B
Speed decreases, magnitude of acceleration increases
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C
Speed increases, magnitude of acceleration increases
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D
Speed decreases, magnitude of acceleration decreases
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Solution
The correct option is B Speed decreases, magnitude of acceleration increases
As the particle goes from mean position to extreme position, its speed decreases and magnitude of acceleration increases. |→v| is maximum at mean position and zero at extremes. |→a| is maximum at extreme positions and zero at mean position.