Power required to generate a wave

[AbhinavJ]

Homework Statement

Linear density of mass m = 0.05 kg/m
Tension = 80N
Frequency, f= 60Hz
Amplitude = 6 cm

The question asks the power supplied to generate such wave in a string.

Homework Equations

V=√T/m
P=1/2mvA^2w^2
w/2pi=f

The Attempt at a Solution

V=(T/m)^1/2
I calculated the angular frequency by w/2pi= f
Then I used the power for avg power
P=1/2A^2w^2vm

 

[haruspex]

Homework Statement

Linear density of mass m = 0.05 kg/m
Tension = 80N
Frequency, f= 60Hz
Amplitude = 6 cm

The question asks the power supplied to generate such wave in a string.

Homework Equations

V=√T/m
P=1/2mvA^2w^2
w/2pi=f

The Attempt at a Solution

V=(T/m)^1/2
I calculated the angular frequency by w/2pi= f
Then I used the power for avg power
P=1/2A^2w^2vm

Your expression for P looks right to me. Do you have reason to believe your answer is wrong? If so, what do you get numerically and what should it be?