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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?


Question ID - 50077 | SaraNextGen Answer

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

Answer Key : (4) -

=ki m

From linear momentum conservation

Mv0=(2m+M) vf

 vf=

 =6

 

 

   = 4



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