5.Two ivory balls are placed together at rest. A third Identical ball moving with velocity u in line of first two balls collide head on elastically then A)third ball comes to rest with second ball while first ball moves with speed u B) third ball comes to rest and other two move together with speed u/2 C)all three balls move together with speed u/3 D)all three balls move in such a manner each makes angle 120^° to each other Give reason too for ur choice

5.Two ivory balls are placed together at rest. A third Identical ball

1.	5.Two ivory balls are placed together at rest. A third Identical ball moving with velocity u in line of first two balls collide head on elastically then A)third ball comes to rest with second ball while first ball moves with speed u B) third ball comes to rest and other two move together with speed u/2 C)all three balls move together with speed u/3 D)all three balls move in such a manner each makes angle 120^° to each other Give reason too for ur choice
Answer» 5.Two ivory balls are placed together at rest. A third Identical ball moving with velocity u in line of first two balls collide head on elastically then A)third ball comes to rest with second ball while first ball moves with speed u B) third ball comes to rest and other two move together with speed u/2 C)all three balls move together with speed u/3 D)all three balls move in such a manner each makes angle 120^° to each other Give reason too for ur choice