document.write( "Question 1185680: Particle A of mass 2.0kg is moving at 15m/s to the east. Particle B of mass 3.0kg is moving to the west at 10.0m/s. Find the velocity of the center of the mass of the two particles. Show your solution \n" ); document.write( "

Algebra.Com's Answer #816525 by ikleyn(52864) $\"\"$ $\"About$

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\n" ); document.write( "Particle A of mass 2.0kg is moving at 15m/s to the east. Particle B of mass 3.0kg is moving to the west at 10.0m/s.
\n" ); document.write( "Find the velocity of the center of the mass of the two particles. Show your solution
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document.write( "Consider number line west-east and place the origin at the starting point.\r\n" );
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document.write( "In time t, particle A has the coordinate 15t meters, moving east.\r\n" );
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document.write( "In time t, particle B has the coordinate -10t meters, moving west.\r\n" );
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document.write( "The center of mass has the coordinate   =  = 0.\r\n" );
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document.write( "We see that the center of mass has the constant coordinate 0 (meters), so the center of coordinate is not moving: it is at rest.\r\n" );
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document.write( "ANSWER.  The velocity of the center of masses is 0 (zero, ZERO).\r\n" );
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