Wave Speed on a String
المؤلف:
Professor John W. Norbury
المصدر:
ELEMENTARY MECHANICS & THERMODYNAMICS
الجزء والصفحة:
p 196
1-1-2017
2653
Wave Speed on a String
When a wave travels on a string, the wave speed depends on both the string tension 
and the mass per unit length μ, or linear mass density. What must the exact formula be? ( is now tension, not torque) Well the units of v are m sec-1 and units of are N ≡ kg m sec-1 and units of μ are kg m-1. To get m sec-1 from kg m sec-2 and kg m-1 can only be obtained with
Thus we must have
And we can combine with our previous formula, so that the wave speed on a string is 
.
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