AIIMS2009Physics-Mechanics
AIIMS 2009 Physics Coefficient of Restitution MCQ Question
Type: MCQ-conceptual-Medium-Class 11
A ball is bouncing down a flight of stairs. The coefficient of restitution is e. The height of each step is d and the ball descends one step each bounce. After each bounce it rebounds to a height h above the next lower step. The height is large enough compared with the width of step so that the impacts are effectively head-on. Find the relationship between h and d.
A
h = d / (¹⁻ e²)
B
h = d / (¹⁺ e²)
C
h = d / (¹⁺ e)
D
h = d / (¹⁻ e)
Correct Answer
Option A
Detailed Explanation
The ball falls a distance h from its highest position and rebounds a distance (h – d).
Found an issue with this question?