question_answer

There block A, B and C are lying on a smooth horizontal surface, as shown in the figure. A and B have equal masses, m while C has mass M. Block A is given an initial speed v towards B due to which it collides with B perfectly in elastically. The combined mass collides with C, also perfectly in elastically and \[\frac{5}{6}\]th of the initial kinetic energy is lost in whole process. If the value of M/m is\[\frac{4}{x}\]. Find the value of x.

Answer:

1