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Find the resultant amplitude of the foll...

Find the resultant amplitude of the following simple harmonic equations `:`
`x_(1) = 5sin omega t`
`x_(2) = 5 sin (omega t + 53^(@))`
`x_(3) = - 10 cos omega t `

A

5

B

10

C

15

D

20

Text Solution

Verified by Experts

The correct Answer is:
B

`x_(1)=5 sin omegat`
`x_(2)=5 sin (omegat+53^(@))`
`x_(3)=-10 cos omegat`
we can write
`x_(3)=10 sin (omegat-90^(@))` Finding the resultant amplitude by vector notation.

Resultant Amplitude
`|R|= sqrt(8^(2)+6^(2))=10`
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