A Level M1 Newtons Law Questions
Hi,
So in M1 (aqa) when calculating tension you can use either T - mg = ma or mg - T = ma. But I am not sure when to use which one. I know that it has something to do with tension being the greatest force or something.
Any help will be appreciated.
So in M1 (aqa) when calculating tension you can use either T - mg = ma or mg - T = ma. But I am not sure when to use which one. I know that it has something to do with tension being the greatest force or something.
Any help will be appreciated.
Original post by JN17
The equation shows that the net force is equal to ma, so if tension is larger than weight, the resultant force will be in the direction of the tension, so T - mg = ma. If weight was larger, the opposite would be true,
Thanks for the reply, I found out which way around the equations should be.
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