# Force on suspension when hitting a step

Physics Asked by user2882635 on October 29, 2020

I’m trying to calculate the magnitude and direction of the force exerted on a wheel when encountering a step. The wheel and the steps are non-deformable.

I found two different approaches:

If anyone has any pointers how to continue from here, it would be much appreciated. I’m trying to calculate the vertical force to select the appropriate spring for the given speed.

If you had a lone wheel of known size and mass which experiences no friction at the point of contact, you might be able to simulate this situation. The problem is that the force of contact changes in both magnitude and direction as the wheel rises up over the step.

Answered by R.W. Bird on October 29, 2020

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