document.write( "Question 1182716: A car starting from rest is given a constant acceleration of 5m/s^2. (a) In how many seconds will it attain a velocity of 100 m/s^2? (b) How far will it have traveled in this same time?
\n" ); document.write( " \n" ); document.write( "

Algebra.Com's Answer #812798 by ikleyn(52781) $\"\"$ $\"About$

You can put this solution on YOUR website!
.
\n" ); document.write( "

\r\n" );
document.write( "\r\n" );
document.write( "To find the time, use the formula for the speed gained by uniformly accelerated body\r\n" );
document.write( "\r\n" );
document.write( "      v = at.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "where \"a\" is the acceleration; t is the time;  v is the speed.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "In your case  a = 5 m/s^2, v = 100 m/s  are given,  so\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "    t =  =  = 20 seconds.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Having the acceleration and time, you can now find the distance\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "    d =  =  =  = 5*200 = 1000  meters.    ANSWER\r\n" );
document.write( "

\r
\n" ); document.write( "\n" ); document.write( "The problem is solved: all questions are answered.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "---------------\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "I used standard formulas from Physics (kinematics).\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );