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Question

The equation of a simple harmonic motion is given by x=6sin10t+8cos10t, where x is in cm, and t is in seconds. Find the resultant amplitude

A
20
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B
10
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C
30
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D
50
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Solution

The correct option is A 10
Basically in
y=Asin(ωt)

A=amplitude is nothing but maximum value of y,

Same goes here too,

In x=6sint+8cost

Amplitude=max(x),

Which is=62+82=10

Hence Option B is the correct answer.

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