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## Main Question or Discussion Point

I am calculating the initial velocity of a released pvc pipe after it has been bent. I would like to know if i have this correct.

Potential energy = Kmgh; I have my mg and it is 50N, so PE = k*50*h;

I have been told that k is the spring constant of my bent pvc pipe. Therefore since I have 50N already i can say that k = -50/h. h is my displacement so I am going to say for experiment's sake that my displacement is 10m. therefore my spring constant is -5N/m.

So now we can say PE = (-5)*50*10(once again 10 is my displacement).

Does this mean that my potential energy is 2,500J? Also is my spring constant correct?

Potential energy = Kmgh; I have my mg and it is 50N, so PE = k*50*h;

I have been told that k is the spring constant of my bent pvc pipe. Therefore since I have 50N already i can say that k = -50/h. h is my displacement so I am going to say for experiment's sake that my displacement is 10m. therefore my spring constant is -5N/m.

So now we can say PE = (-5)*50*10(once again 10 is my displacement).

Does this mean that my potential energy is 2,500J? Also is my spring constant correct?