How to Measure the Impact From a Collision

A batter hits a baseball, NASCAR has a 21-car crash, or maybe Thor punches the Hulk. When one object collides with another, we can describe the interaction with an impact force. But putting a specific number on that force is actually quite difficult.

Let’s go over some methods we can use to find an impact force.

Let’s say a cart is rolling down a ramp and collides with a spring bumper, like so:

When the cart interacts with the spring bumper “wall,” there is a backwards-pushing force on the cart. We can

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