A thin uniform rod of mass 'm' and length 'l' is kept on a smooth horizontal surface such that it can move freely. Where should a particle of mass 'm' moving horizontally strike on the rod from the centre (x) such that the point 'A' at a distance l/3 from the end of the rod is instantaneously at rest just after the elastic collision ?

A thin uniform rod of mass 'm' and length 'l' is kept on a smooth hori

1.	A thin uniform rod of mass 'm' and length 'l' is kept on a smooth horizontal surface such that it can move freely. Where should a particle of mass 'm' moving horizontally strike on the rod from the centre (x) such that the point 'A' at a distance l/3 from the end of the rod is instantaneously at rest just after the elastic collision ?
Answer» <html><body><p>l/2<br/>l/3<br/>l/3<br/>l/3</p>Answer :A</body></html>