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A body is executing simple harmonic moti...

A body is executing simple harmonic motion with an angular frequency 2 rad/sec. The velocity of the body at 20mm displacement, when the amplitude of motion is 60mm, is

A

90 mm/s

B

113 mm/s

C

118 mm/s

D

131 mm/s

Text Solution

Verified by Experts

The correct Answer is:
B
`v=omegasqrt(A^(2)-y^(2))=2xxsqrt((60)^(2)-(20)^(2))=30sqrt(2)=113mm//s`
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FULL MARKS-OSCILLATIONS -ADDITIONAL QUESTIONS SOLVED
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