Here's my question..
If i jumped inside a train... will i land on the exact point i stand or i will be behind by a little bit? ( assume that the train travel very very very very fast)
Science Physics Q, does velocity stack?
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 Sep 17 2010, 12:42 AM
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1,258 posts Joined: Dec 2008 From: /k/ 
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Sep 17 2010, 01:02 AM
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QUOTE(empire23 @ Sep 17 2010, 12:59 AM) Exact point. explanation please? When we leave the surface, arent we will decelerate? |
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Sep 17 2010, 09:05 AM
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QUOTE(empire23 @ Sep 17 2010, 01:12 AM) Why would you? Under the assumption there is no air resistance and the velocity of the train is constant (a=0), there's no deceleration. I mean in real life though... so there is air resistance and its not vacuum ....If you are moving through a perfect vacuum at 120 kmph with no other forces acting on you, you will forever travel at that speed. That mean if i have a cannon inside the train ( without roof), i shoot a ball up.. will the ball land at exact point o.0? |
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