- #1

freexd

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what g force did the impact have?

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- Thread starter freexd
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- #1

freexd

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what g force did the impact have?

- #2

mfb

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As rough approximation: (braking distance)/(distance it fell).

- #3

Dale

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You need to know how fast it was going right before the impact, and how long it took to stop.

what g force did the impact have?

- #4

freexd

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as falling acceleration we could take 10 m/s (falling acceleration)

the time it took to stop is hard to estimate

- #5

mfb

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The lamp is not in free fall, however, as its base always has contact to the floor. It is possible to get a good estimate of its speed (if you know its mass distribution and so on), but I don't think you care about a factor of ~1.5 here, so assuming a free fall gives a reasonable estimate. There is a simple formula to find the speed of an object after falling down a given height. This will also help to find the stopping time.

Alternatively, you can directly use the approximation I gave in post 2. It assumes uniform deceleration which is probably not true either, but precise values are much more work.

- #6

CWatters

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- #7

sophiecentaur

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Somebody else's!.but perhaps you care more about the head?

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