## AravindG 4 years ago pls explain hw we goot the eqns like e^2h and all in this fig.the fig shows a ball bouncing and eventually coming to rest (note e is coefficient of restitution

1. anonymous

The coefficient of restitution for an object bouncing off of a stationary object is defined as$C_R =e = {v \over u}$ where $$v$$ is the velocity after impact and $$u$$ is the velocity before impact. From the equations of projectile motion, we can express this as$C_R = e = \sqrt{ h \over H}$where $$h$$ is the bounce height and $$H$$ is the drop height.

2. AravindG

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