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Question: Do you teach the Impulse Momentum Theorem?
We casually added some mention of this to a lab we’ve started doing in
the last couple of years. We’re doing a karate-style board break.
High speed video allows us to look at the collision in some detail.
Though the board breaks in about two frames, we can observe the velocity
of the hand (or another object) before and after the collision.
It seems that Impulse was dropped from the curriculum at some point in
the past. Was there a reason for this? We teach F = ma but we don’t
seem to carry that forward to talk about the change in velocity from a
force applied for a short time and one applied for a long time. Though
we do go on to define work.
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