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MechaMZ
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Homework Statement
[PLAIN]http://img87.imageshack.us/img87/9964/impactforceonbike.png
A roller is rolling with a constant speed before and after the drop. How do i figure out the impact force exerted on the wheel when it just touch the floor from a height h?
Assume, angular velocity before and after dropping are equal, time taken (t) for the dropping motion, height (h=d), mass (m) are measured and known. Final vertical velocity is zero.
The Attempt at a Solution
in the scenario, i need to determine the impact force (F). however, the initial velocity is an unknown since I've no idea how to determine it. I've tried to let initial vertical velocity as:
Vi=Vcenter of mass= r x w
However, i think it should not the right way as assume Vi=Vcenter of mass because the motion of rolling and the vertical velocity are 90 degree.
So how do i actually determine the initial vertical velocity in order to find out my impact force exerts on vertical direction?
thank you so much for your patience and help.
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