Sep 16 2010, 09:50 AM
QUOTE(TheDoer @ Sep 16 2010, 09:42 AM)
Here is a Q that I can't wrap my brain around.1. If you are on top of a train, running from back to front, does that mean that you're going faster than the train?
2. If you were to jump off the train after the initial run, will your distance be farther than if you jumped without running?
3. If you dropped a rock from the train to hit an oncoming signboard. will the impact be the same as if you were to throw that same rock at that sign board?
Explanation and links appreciated.
2. Yes. Since you are travelling at a higher velocity if you're running, you would cover a longer distance while you're airborne before reaching the ground
3. Yes. Assuming no wind resistance, the rock would hit the signboard at 60 km/h when dropped from the train. It would produce the same force if you were to throw the rock at the signboard at 60 km/h.
Hope this helps..,
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