document.write( "Question 1196122: A particle moving in a straight line has initial velocity of 2 m/s at a point O on the line. The particle moves so that its acceleration is t seconds later is given by (2t-6) meter per second squared. Find the (a) Velocity when t= 5 seconds (b) Displacement of the particle in the fifth seconds. \n" ); document.write( "

Algebra.Com's Answer #844775 by ikleyn(52781) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( " In the post by tutor @Shin, the answer to question (a) is correct,
\n" ); document.write( " while the answer to question (b) is INCORRECT.\r
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document.write( "The correct answer to question (b) is\r\n" );
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document.write( "    the displacement of the particle in the fifth second is s(5) - s(4), \r\n" );
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document.write( "    where  s(t) =  -  + 2t.\r\n" );
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document.write( "So,  s(4) =  -  + 2*4 = -18.6667 m   (rounded),\r\n" );
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document.write( "     s(5) =  -  + 2*5 = -23.3333 m   (rounded),\r\n" );
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document.write( "and the displacement in the fifth second is\r\n" );
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document.write( "     s(5) - s(4) =  -23.3333 - (-18.6667) = -4.6666 m  (rounded).\r\n" );
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document.write( "ANSWER to (b)  is  -4.6667 m  (rounded).\r\n" );
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