document.write( "Question 1146941: A weight is suspended from a spring and vibrating vertically according to the equation f(t) =25.2sin(3.8t-2.1), where f(t) centimeters is the directed distance of the weight from its central position at t seconds, and the positive distance means above its central position. Find the times when the weight is at its central position. \n" ); document.write( "

Algebra.Com's Answer #768224 by ikleyn(52837) $\"\"$ $\"About$

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document.write( "These times \"t\" are the roots of the equation\r\n" );
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document.write( "    3.8t - 2.1 = ,  k = 0, +-1, +-2, +-3,  . . . \r\n" );
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