Why Does Mastering Physics Show an Error in My Potential Energy Calculation?

[fcman]

Mastering physics keeps saying I'm off by an additive constant.

A proton's speed as it passes point A is v. It follows the trajectory shown in the figure.

This is my input: sqrt(80/(1.67*10^-27))+v

 

[fcman]

Nothing? This thing is due in a couple hours

 

[kyle8921]

It is possible that the mastering physics software is referring to the concept of potential energy being defined up to an additive constant. This means that the numerical value of potential energy can vary depending on where the reference point is chosen. In this case, the reference point may be different than the one you have chosen, resulting in a difference in the calculated potential energy.

To resolve this issue, it may be helpful to check the instructions or guidelines provided by the software and make sure that you are using the correct reference point. Additionally, it may be helpful to double check your calculations and make sure that all the necessary variables and units are included. If the issue persists, it would be beneficial to reach out to the software's technical support for further assistance.