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Please help!!!

Having a little difficulty with a homework question and concept

y = 2.28sin(0.0276pi x + 2.42pi t)

Find the amplitude, wavelength, frequency, speed and maximum transverse speed.

Definitely correct answers

A = 2.28cm

Wavelength = 72.46 cm

Frequency = 1.21 Hz

Questionable answers

Speed = 87.68 cm/s

Max transverse speed = ??????

Reasoning

The speed should be w/k which would give 2.42pi/0.0276pi = 87.68 cm/s

The max transverse velocity though....would that be when the trig function of cos is equal to 1 in this equation u = -wAcos(kx-wt) ????

Having a little difficulty with a homework question and concept

## Homework Statement

y = 2.28sin(0.0276pi x + 2.42pi t)

Find the amplitude, wavelength, frequency, speed and maximum transverse speed.

## The Attempt at a Solution

Definitely correct answers

A = 2.28cm

Wavelength = 72.46 cm

Frequency = 1.21 Hz

Questionable answers

Speed = 87.68 cm/s

Max transverse speed = ??????

Reasoning

The speed should be w/k which would give 2.42pi/0.0276pi = 87.68 cm/s

The max transverse velocity though....would that be when the trig function of cos is equal to 1 in this equation u = -wAcos(kx-wt) ????

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