document.write( "Question 41407: At 9:00 a.m. a truck leaves the truck yard and travels west at a rate of 45 mi/hr. Two hours later, a second truck leaves along the same route, traveling at 55 mi/hr. When will the second truck catch up to the first? \r
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Algebra.Com's Answer #26715 by rajagopalan(174)![]() ![]() You can put this solution on YOUR website! start time of truck 1 = 9 \n" ); document.write( "start time of truck 2 = 11 \n" ); document.write( "Position of truck 1 at 11 am = 45*2 = 90 km apart \n" ); document.write( "speed of truck 2 =55 \n" ); document.write( "speed of truck 1 =45 \n" ); document.write( "Apprach velocity = 55-45 = 10 mph \n" ); document.write( "So to cover 90 miles time needed = 90/10=9 hours \n" ); document.write( "Second truck will catch up / overtake 1st truck at 11+9 = 20 hours \n" ); document.write( "or (08:00 pm)on the same day. \n" ); document.write( "Cheers!\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |