Asked by ami

A ball of mass 0.540 kg moving east (+x direction) with a speed of 3.30 m/s collides head-on with a 0.740 kg ball at rest. If the collision is perfectly elastic, what will be the speed and direction of each ball after the collision?
a)ball originally at rest m/s
b)ball originally moving east m/s
Answered by bobpursley
http://www.jiskha.com/display.cgi?id=1259111298
Answered by ami
i got -.5156 and 2.785 but both are wrong
Answered by bobpursley
The procedure laid out is exact. Recheck your math.
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