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I did an experiment titled 'mass on a spiral spring' in order to find the value for the acceleration due to gravity. The experiment consists of two parts. In the first part of this experiment, I just measured the oscillation period of a spring as a suspended mass and plotted these results onto a graph to find the spring constant.

In the 2nd part of the experiment, I measured the ratio of the extension of the spring as a function of suspended mass and plotted these results onto a graph, creating an e/m graph and then found the gradient of it.

My question to you is to find the value of the acceleration of gravity, do you simply multiply the gradients of both graphs?

Thanks a lot