document.write( "Question 1007275: Please help me solve this problem: \r
\n" ); document.write( "\n" ); document.write( "A fish is being reeled in at a rate of 30 cm/s from a bridge that is 4m above the water. At what rate is the angle (in rads/s) between the line and the water changing when there is 8m of line out ? \r
\n" ); document.write( "\n" ); document.write( "fishing line = hypotenuse
\n" ); document.write( "4m = height
\n" ); document.write( "theta = angle opposite 4m and adjacent water and hypotenuse\r
\n" ); document.write( "\n" ); document.write( "Your help is always appreciated!
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Algebra.Com's Answer #623398 by Alan3354(69443)\"\" \"About 
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A fish is being reeled in at a rate of 30cm/s from a bridge that is 4m above the water. At what rate is the angle (in rads/s) between the line and the water changing when there is 8m of line out ?
\n" ); document.write( "fishing line = hypotenuse
\n" ); document.write( "4m= height
\n" ); document.write( "theta= angle opposite 4m and adjacent water and hypotenuse
\n" ); document.write( "Hypotenuse = c
\n" ); document.write( "-------
\n" ); document.write( "Angle a = arcsin(4/c)
\n" ); document.write( "Differentiate implicitly
\n" ); document.write( "da/dt = \"%281%2Fsqrt%281+-+%284%2Fc%29%5E2%29%29%2A%28-4%2Fc%5E2%29%2A+%28dc%2Fdt%29\"
\n" ); document.write( "dc/dt = -0.3 m/sec
\n" ); document.write( "da/dt = (1/sqrt(1 – 16/64))*(-4/64)*(-0.3)
\n" ); document.write( "da/dt = (1/sqrt(3/4))*(1.2/64)
\n" ); document.write( "= sqrt(3)/80 rad/sec
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