A ball is projected from a point in one of the two smooth parallel vertical walls against the other in a plane perpendicular to both. After being reflected at each wall impinge again on the second at

Question

A ball is projected from a point in one of the two smooth parallel vertical walls against the other in a plane perpendicular to both. After being reflected at each wall impinge again on the second at a point in the same horizontal plane as it started from. If "e" is the coefficient of restitution, " a " is the distance between the walls and " R " is the free range on horizontal surface, then which of the following is correct?

Options:

Answer:

C

Solution:

$\frac{a}{u _{x}} + \frac{a}{e u _{x}} + \frac{a}{e ^{2} u _{x}} = \frac{2 u _{y}}{g}$

Horizontal range:

$R = \frac{2 \cdot u _{x} u _{y}}{g}$

TestHub · Accepted Answer

u x ​ a ​ + e u x ​ a ​ + e 2 u x ​ a ​ = g 2 u y ​ ​ Horizontal range: R = g 2 ⋅ u x ​ u y ​ ​

Physics - Center of Mass Question with Solution | TestHub

Options:

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JEE Main 2028 (Class 11)