document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1182821>Question 1182821</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A circular wheel of radius r rolls, without slipping, through half a revolution. The point X is on the horizontal diameter at the start.<BR>\n" );
document.write( "The distance between the starting and finishing position of the point X is? </SPAN>\n" );
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document.write( "A circular wheel of radius r rolls, without slipping, through half a revolution. <BR>\n" );
document.write( "The point X is on the horizontal diameter at the start.<BR>\n" );
document.write( "The distance between the starting and finishing position of the point X is?<BR>\n" );
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document.write( "As it is known, &nbsp;any diameter of a circle has &nbsp;2 &nbsp;(two) &nbsp;endpoints.\r<BR>\n" );
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document.write( "Respectively, &nbsp;there are &nbsp;2 &nbsp;different possible positions of the point &nbsp;X &nbsp;at the start, &nbsp;and, &nbsp;respectively, <BR>\n" );
document.write( "two different final positions, &nbsp;giving two possible different answers.\r<BR>\n" );
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document.write( "So, &nbsp;if you want to get a unique answer, &nbsp;you must specify the initial condition in more accurate fashion.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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