SOLUTION: The velocity v of a pulse travelling in a string varies directly as the square root of the tension T in the string.If the velocity of a pulse in a string is 150m/s when the tension

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Question 1197644: The velocity v of a pulse travelling in a string varies directly as the square root of the tension T in the string.If the velocity of a pulse in a string is 150m/s when the tension is 90.0N,find the velocity when the tension is 135N.
I tried the method :v=k.square root T. 150=k. square root 90 k=15.8 when the tension is 90.0N,v=(15.8)square root 135

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
The velocity v of a pulse travelling in a string varies directly as the square root of the tension T in the string.
setting Up the Proportion:
V%5B1%5D%2Fsqrt%28T%5B1%5D%29+=+V%5B2%5D%2Fsqrt%28T%5B2%5D%29
150%2Fsqrt%2890%29+=+V%5B2%5D%2Fsqrt%28135%29
V%5B2%5D+=+%28150%2Asqrt%28135%29%29%2F%28sqrt%2890%29%29 = 183.7 m/s rounded