1someone plz try this........................
a heavy ball of mass 2m moving with velocity u0 collides elastically head on with cradle of three identical balls of mass m as shown.determine velocity of each ball after collision.
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UP 0 DOWN 0 0 9
9 Answers
1http://targetiit.com/iit-jee-forum/posts/this-is-a-nice-logical-one-everyone-should-try-to-10889.html
1I take that the balls 1 2 and 3 are a little apart
Using conservation of momentum and coefficient of restitution,
velocity of ball of mass m/2 is u0/2 leftwards
velocity of ball 1 and 2 will be zero and velocity of ball 3 will be 3u0/2
1i have done exactly that............but th answers given are very different
1in total dere will be 6 collisions before d final velocities is reached.........
2m mass body will have velocity v°/18
m1 will have v°/6........
m2 will have 4v°/9.....
m3 will have 4v°/3........
all directions of velocities in forward direction........
decoder am i correct???
1first balls 1 an 2 will stop,but d ball 2m will still be moving towards dem...so it will again hit ball 1 and 2 again....think further.,,,
1@ maths _psy
some of your answers are correct .u have got velocity of m2 and m3 right......
m1 velocity -4uo/27
and 2m velocity - uo/27
plz explain........