3/248 To pass inspection, steel balls designed for use in ball bearings must clear the fixed bar A at the top of their rebound when dropped from rest through the vertical distance H = 36 in. onto the heavy inclined steel plate. If balls which have a coefficient of restitution of less than 0.7 with the rebound plate are to be rejected, determine the position of the bar by specifying h and s. Neglect any friction during impact.%3D

Answer

To determine the position of the bar ( A ) based on the specified requirements for steel balls, we will calculate the maximum rebound height ( h ) using the coefficient of restitution ( e ). The key steps involve understanding how to compute the rebound height following an impact.

Given:

Step-by-Step Calculation: