Final answer:
To choose which equations to use in solving a physics problem, you need to write down the given information, identify the unknowns, and find equations that can help solve the problem. It is important to choose equations with only one unknown, but additional equations may be required for problems with multiple unknowns. In some cases, multiple equations may be necessary to obtain the final answer.
Step-by-step explanation:
When solving a physics problem, there are a few steps to follow in order to choose which equations to use. First, write down all the given information.
Next, identify the unknowns in the problem.
Then, find an equation or set of equations that can help solve the problem.
It is ideal to choose equations that have only one unknown, but if there are multiple unknowns, additional equations will be needed.
In some cases, you may have to use multiple equations to get the final answer.