document.write( "Question 1200071: a body b is dropped from the top of the tower 100m high at the same instant that a body a is thrown vertically upward from the ground. the two bodies pass each other at a height of 21.6m from the ground.\r
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Algebra.Com's Answer #834088 by ikleyn(52847) $\"\"$ $\"About$

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\n" ); document.write( "a body B is dropped from the top of the tower 100m high.
\n" ); document.write( "at the same instant that a body A is thrown vertically upward from the ground.
\n" ); document.write( "the two bodies pass each other at a height of 21.6m from the ground.
\n" ); document.write( "a. Initial velocity og body A?
\n" ); document.write( "b. Maximum height of body A?
\n" ); document.write( "C. Final velocity of body B?
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document.write( "The falling body B height equation is\r\n" );
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document.write( "    h = \r\n" );
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document.write( "Use it to find the time \"t\", when it reaches the height 21.6m\r\n" );
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document.write( "     = 21.6\r\n" );
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document.write( "     = 100 - 21.6\r\n" );
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document.write( "    t =  = 4 seconds.\r\n" );
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document.write( "For the body A thrown vertically upward from the ground, the height equation is\r\n" );
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document.write( "    h = ,\r\n" );
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document.write( "where v is the unknown vertical initial velocity.  We just know that this body reached \r\n" );
document.write( "the height 21.6 meters in 4 seconds; so\r\n" );
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document.write( "    21.6 = .\r\n" );
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document.write( "Solve this equation to find v\r\n" );
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document.write( "    v =  = 25 m/s.\r\n" );
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document.write( "It is the answer to question (a): the initial velocity of body A is 25 m/s.\r\n" );
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