document.write( "Question 762998: an object starting from rest travels 20 m in first 2 sec and 160m in next 4 sec. what will be the velocity after 7 sec from the start \n" ); document.write( "
Algebra.Com's Answer #464419 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
an object starting from rest travels 20 m in first 2 sec and 160m in next 4 sec. what will be the velocity after 7 sec from the start
\n" ); document.write( "------------
\n" ); document.write( "s = at^2 = 10t^2
\n" ); document.write( "a = 10 m/sec/sec
\n" ); document.write( "==============
\n" ); document.write( "v = at = 10*7
\n" ); document.write( "v = 70 m/sec
\n" ); document.write( "
\n" );