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Why the results vary a lot when we calculate the result with or without Gravity.

Question asked by Naveen Saini on Mar 5, 2013
Latest reply on Mar 5, 2013 by John Sutherland

I have to lift the Load of 18 Kg through Bar mechanism and i want to calculate how much force should be applied by the human to push a bar so that load can be lifted.

Max. limit is 100 Newton. While using Motion analysis i am getting very varied results like i have to apply around 1000 Newton force.Can  i get the accurate results without using Gravity option. As i am not happy with the results that i have got when i have applied Gravity.