- #36
gmalcolm77
- 28
- 2
thejosh said:Unfortunately Zachary I strongly disagree as I believe that is not a correct analysis as magnets can do work its just gravity that does no work when an object is at a certain distance to the larger body but since a magnetic field is able to pull a body towards it as work is defined as force * distance in the direction of the force a magnet is by definition is able to do work just check out this site https://van.physics.illinois.edu/qa/listing.php?id=17176 .And on top of that kinetic potential energy is defined as 1/2 mv^2 because this formula includes velocity which is a vector quantity anything that changes the direction of an object and/or the motion therefore changes its kinetic energy. . But my point was that the force needed to stop abullet using a magnet is not achievable right now.
I did the experiment with the magnet moving the aluminum can and all looked good until I replaced the magnet with an unmagnetized bolt and the can still moved due to air displacement, so I think that experiment is bogus unless performed in a vacuum.