document.write( "Question 731943: A 340 meter long train is accelerating from rest at 6 meter/second square. With the start of motion, a man standing at the front end of the train, projects a ball upwards at a velocity of 50 meters/second. Do calculaions to decide if the ball will fall back on the train or will miss it. \n" ); document.write( "

Algebra.Com's Answer #852989 by ikleyn(53427) $\"\"$ $\"About$

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\n" ); document.write( "A 340 meter long train is accelerating from rest at 6 meter/second square.
\n" ); document.write( "With the start of motion, a man standing at the front end of the train, projects a ball upwards
\n" ); document.write( "at a velocity of 50 meters/second. Do calculaions to decide if the ball will fall back on the train
\n" ); document.write( "or will miss it.
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\n" ); document.write( "\n" ); document.write( " I will solve the problem as physicists do.\r
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document.write( "The ball will move up  during   =  = 5 seconds.\r\n" );
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document.write( "Next 5 seconds the ball will fall down from the most upper level to the ground.\r\n" );
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document.write( "So, the train has 10 seconds to move forward while the ball is in the air.\r\n" );
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document.write( "During 10 seconds, the train will move forward   =  = 300 meters.\r\n" );
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document.write( "Hence, the ball will fall back on the train.\r\n" );
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\n" ); document.write( "\n" ); document.write( "Solved.\r
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