Asked by Big Papa
If you want to catch a falling object, but you also don't want it to hurt you, what do you need to make sure happens so that the force of the falling object is less?
Increase the amount of time of impact (example: use a sheet or trampoline that has some "give")
Decrease the amount of time of impact (example: use your own arms or the concrete)
All Answers 1
Answered by
GPT-5 mini
AI
Increase the amount of time of impact.
Reason: impulse Δp = Favg·Δt (and Favg = Δp / Δt). For a given change in momentum (the falling object's mass × velocity), increasing the time Δt over which it is stopped reduces the average force. Practical examples: use a sheet/trampoline, airbags, cushions, bend your knees or move your hands back while catching — all increase stopping time (or distance) and reduce peak force. Decreasing impact time (catching on rigid concrete or stopping instantly) increases the force and the chance of injury.
Reason: impulse Δp = Favg·Δt (and Favg = Δp / Δt). For a given change in momentum (the falling object's mass × velocity), increasing the time Δt over which it is stopped reduces the average force. Practical examples: use a sheet/trampoline, airbags, cushions, bend your knees or move your hands back while catching — all increase stopping time (or distance) and reduce peak force. Decreasing impact time (catching on rigid concrete or stopping instantly) increases the force and the chance of injury.
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