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In setting the problem up, do you calculate say, Tension A with the mg of Car 1, Tension B with the mg of Car 2, etc. and then add those totals OR do you add all the x-components of the tensions and then all the y-components?

- Thread starter TikiPost10
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- #1

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In setting the problem up, do you calculate say, Tension A with the mg of Car 1, Tension B with the mg of Car 2, etc. and then add those totals OR do you add all the x-components of the tensions and then all the y-components?

- #2

OlderDan

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The best way to approach problems of this sort is to look at each accelerating object separately, recognizing that they have a common acceleration. You can write an F = ma equation for each car, where in two of the three cases F is the difference between two tensions. See if you can write the three equations and take it from there.TikiPost10 said:

In setting the problem up, do you calculate say, Tension A with the mg of Car 1, Tension B with the mg of Car 2, etc. and then add those totals OR do you add all the x-components of the tensions and then all the y-components?

It does turn out that each tension equals the mass of all cars

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