Physics · 2019
JEE Main · 9 January 2019, Shift 1 · Q4
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…
Three blocks $\displaystyle \mathrm{A}, \mathrm{B}$ 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 inital speed $\displaystyle v$ towards B due to which it collides with B perfectly inelastically. The combined mass collides with C, also
perfectly inelastically $\displaystyle \frac{5}{6}$ th of the initial
kinetic energy is lost in whole process. What is value of M/m ?
Official answer
(2)
$\displaystyle 4$
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JEE Main 2019 Physics question, with the answer from NTA’s final answer key. Where our answers come from.