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Lesson 5.3 Homework
1.
A transverse wave pulse on a string is represented by the wave
function
3
2
2
0.125
( , )
1.8
(
5 )
m
y x t
m
x
t
=
+

(i)
What is the velocity of the pulse?
(ii)
Plot the wave function for t = 0, 1 and 2 s using the same axes
(iii)
What is the amplitude of the wave?
(iv)
Repeat (i), (ii) and (iii) above for
3
2
2
0.125
( , )
1.8
(
5 )
m
y x t
m
x
t
=
+
+
2.
One end of a stretched string is moved up and down 5 times a second
so that wave pulses move along the rope with a speed of 10 ms
1
in the
positive xdirection. If the maximum displacement of the string is 10
cm, write down a wave equation to represent the propagation of these
pulses along the rope.
3.
A transverse wave on a string is described by the wave function
y(x,t) = 0.3 sin(12.57x – 251t). Find
(i)
the amplitude of the wave?
(ii)
the wave number k
(iii)
the wavelength
(iv)
the angular frequency
(v)
the frequency and the period of the wave
(vi)
the velocity of the wave
(vii)
the displacement of the wave at x = 3.0 m at t = 2.0 s.
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This note was uploaded on 05/01/2011 for the course PHY 2048 taught by Professor George during the Fall '10 term at Edison State College.
 Fall '10
 George
 Physics, Work

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