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A transverse sinusoidal wave is generated at one end of a long horizontal string by a bar is continuous and is repeated regularly 120 times per second. The string has linear density of 117g/m. the other end of the string is attached to a mass 4.68kg. the string passes over a smooth pulley and the mass attached to the other end of the string hangs freely under gravity. The maximum power transferred along the string is: |
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Answer» 3.845 kW  T = mg T = 46.8 N Speed of wave should be `v = sqrt((t)/(mu)) = sqrt((46.8)/(0.117)) = 20MS^(-1)` Power of wave on string is given as `P = (1)/(2)A^(2)omega^(2)MUV` = `(1)/(2) XX (1.12 xx 10^(-2))^(2) xx(2PI xx 120)^(2) xx 0.117 xx 10^(-3) xx20 ` 0.0834 W. |
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