Question

The displacement of an elastic wave is given by the function
y = 3 sin wt + 4 coswt where y is in cm and t is in second. Calculate the
resultant amplitude.
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Answer 1

HERE COMES ANS

FROM GENERAL WAVE FORMULA WE HAVE

Y= ASIN (wt + @)

so IN THIS PERTICULAR CASE WE ARE GIVEN TWO WAVES

1= 3 SIN WT

2 = 4 cos wt

as we know the phase difference between sin and cos will be π /2

but here to calculate the resultant wave which comes to be

A1= 3

A2 = 4

RESULTANT AMPL=

A = √ A1² + A2²

A= √ 9+16

A= 5 cm ❤❤☺❗

brainliest the answer ☺❤