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A harmonic wave travels along a string, (a) At a point
Chapter 14, Problem 87GP(choose chapter or problem)
Problem 87GP
A harmonic wave travels along a string, (a) At a point where the displacement of the stringis greatest, is the kinetic energy of the string a maximum or a minimum? Explain, (b) At a point where the displacement of the string is zero, is the kinetic energy of the string a maximum or a minimum? Explain.
Questions & Answers
QUESTION:
Problem 87GP
A harmonic wave travels along a string, (a) At a point where the displacement of the stringis greatest, is the kinetic energy of the string a maximum or a minimum? Explain, (b) At a point where the displacement of the string is zero, is the kinetic energy of the string a maximum or a minimum? Explain.
ANSWER:
Step 1 of 3
a) At a point where the displacement of the string is greatest, its displacement is equal to its amplitude (maximum displacement). As the wave moves to maximum position, its velocity decreases gradually and nearly zero.