Friction and velocity
Question asked by: Zain uddin
Asked on: 13 Apr 2008
They fall at the same rate and therefore hit the ground at the same time if they weight the same.
This is because of what is known as a gauge symmetry in gravity - drop different items but of the same weight from the same height and they will hit the ground at the same time, just as the same amount of energy would need to be expended to get them to that height whatever the route, so similarly they will hit the ground at the same time.
By: knowitall
Replied at: 27 Apr 2008
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Question Keywords
velocity friction
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