The motion of a wave traveling along a stretched string is described by the equation:

Question

y(x,t)=(2.4cm)sin(5.7x−14.0t)

What is the minimum time it takes for a particle on the string to move from

y= -2.4 cm to y = 2.4 cm?

Can someone help me give some hints on how to do the question

Answer 1

half a period

14 t changes by pi
say from 14t = 0 to 14t = pi
or
t = pi/14