document.write( "Question 573330: Please help! My teacher taught me a fomrula to use, S=0*r (S=feta multiplied by the radius)...but it's just not making any sense! the quwstion is:
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document.write( "The tip of a pendulum, after swinging through an arc of 2 1/2 radians, forms an arc whose length is 10 inches. Find the length of the pendulum. \n" );
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Algebra.Com's Answer #368744 by lwsshak3(11628) ![]() You can put this solution on YOUR website! Please help! My teacher taught me a fomrula to use, S=0*r (S=feta multiplied by the radius)...but it's just not making any sense! the quwstion is: \n" ); document.write( "The tip of a pendulum, after swinging through an arc of 2 1/2 radians, forms an arc whose length is 10 inches. Find the length of the pendulum. \n" ); document.write( "** \n" ); document.write( "I believe what your teacher had in mind is the formula: S=r*theta, S=length of the arc, 10 inches in your problem, theta=the angle in radians the arc makes, 2 1/2 radians, in your problem, and r=radius,length of the pendulum in your problem. \n" ); document.write( ".. \n" ); document.write( "r=S/theta=10/2.5=4 \n" ); document.write( "ans: \n" ); document.write( "length of the pendulum=4 inches \n" ); document.write( " |