Three blocks 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 brutal speed v towards B due to which it collides with B perfectly inelastically. The combined mass collides with C, also perfectly in elasticity of the initial kinetic energy is lost in whole process. What is value of M/m?

Three blocks 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 brutal speed v towards B due to which it collides with B perfectly inelastically. The combined mass collides with C, also perfectly in elasticity of the initial kinetic energy is lost in whole process. What is value of M/m?

1 Answer - 5876 Votes

3537

=k_{i} m

From linear momentum conservation

Mv_{0}=(2m+M) v_{f}

v_{f}=

=6

= 4