Question
Croquet ball A moving at 8.0m/s makes a head on collision with ball B of equal mass and initially at rest. Immediately after the collision ball B moves forward at 7.1m/s .
What fraction of the initial kinetic energy is lost in the collision?
What fraction of the initial kinetic energy is lost in the collision?
Answers
bobpursley
initial Ke calculate
final Ke, calculate
ke lost=initial-final
fractction lost=kelost/keinitial
final Ke, calculate
ke lost=initial-final
fractction lost=kelost/keinitial
awesome dude
(-2(vb)^2+2(va+vb))/va^2
where
va is first velocity and
vb is 2nd given velovty
where
va is first velocity and
vb is 2nd given velovty