Physics · 2021
JEE Main · 25 July 2021, Shift 1 · Q16
Two billiard balls of equal mass 30 g strike a rigid wall with same speed of 108 kmph (as shown) but at different angles. If the balls get reflected…
Two billiard balls of equal mass $\displaystyle 30$ g strike a rigid wall with same speed of $\displaystyle 108$ kmph (as shown) but at different angles. If the balls get reflected with the same speed then the ratio of the magnitude of impulses imparted to ball ' $\displaystyle a$ ' and ball ' $\displaystyle b$ ' by the wall along ' $\displaystyle X$ ' direction is :
Official answer
(4)
$\displaystyle \sqrt{2}: 1$
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