document.write( "Question 1191829: A log is floating on swiftly moving water. A stone is dropped from rest from a 75-m high bridge and lands on the log as it passes under the bridge.
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document.write( "(a) What is the velocity of the stone when it lands on the log?
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document.write( "(b) How long does it take the stone to reach the log?
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document.write( "(c) If the log moves with a constant speed of 5.0 m/s, what is the horizontal distance between the log and the bridge when the stone is dropped? \n" );
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Algebra.Com's Answer #823686 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! A log is floating on swiftly moving water. A stone is dropped from rest from a 75-m high bridge and lands on the log as it passes under the bridge. \n" ); document.write( "(a) What is the velocity of the stone when it lands on the log? \n" ); document.write( "Using 10 m/sec/sec for gravity: \n" ); document.write( "---- \n" ); document.write( "s = at^2/2 = 75 \n" ); document.write( "5t^2 = 75 \n" ); document.write( "t = 5 seconds to impact. \n" ); document.write( "v = at = 10*5 = 50 m/sec \n" ); document.write( "=================== \n" ); document.write( "(b) How long does it take the stone to reach the log? \n" ); document.write( "5 seconds as in (a) \n" ); document.write( "--------------- \n" ); document.write( "(c) If the log moves with a constant speed of 5.0 m/s, what is the horizontal distance between the log and the bridge when the stone is dropped? \n" ); document.write( "---- \n" ); document.write( "Find the hypotenuse with sides of 25 & 75 meters \n" ); document.write( " \n" ); document.write( " |