1. Tardigrade
  2. Question
  3. Physics
  4. A spherical ball A of mass 4 kg, moving along a straight line strikes another spherical ball B of mass 1 kg at rest. After the collision, A and B move with velocities v1 ms-1 and v2 ms-1 respectively making angles of 30° and 60° with respect to the original direction of motion of A. The ratio (v1/v2) will be

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. A spherical ball $A$ of mass $4\,kg$, moving along a straight line strikes another spherical ball $B$ of mass $1\,kg$ at rest. After the collision, $A$ and $B$ move with velocities $v_{1}\, ms^{-1}$ and $v_{2}\, ms^{-1}$ respectively making angles of $30°$ and $60°$ with respect to the original direction of motion of $A$. The ratio $\frac{v_{1}}{v_{2}}$ will be

WBJEEWBJEE 2012Work, Energy and Power

Solution:

image
Along $y$-axis momentum remains zero. Here
$4 v_{1} \sin 30^{\circ} =v_{2} \sin 60^{\circ}$
$\frac{v_{1}}{v_{2}} =\frac{\sqrt{3}}{4}$