The best approach to solving a difficult physics problem is to start by understanding the concepts and principles involved. Break down the problem into smaller, more manageable parts and use equations and formulas that apply to those specific parts. It may also be helpful to draw diagrams or use visual aids to better visualize the problem.
To determine which formula to use for a specific physics problem, start by identifying what is given and what is asked for in the problem. Then, look for equations or formulas that involve those quantities. Additionally, pay attention to any units given in the problem, as this can also help guide you towards the correct formula.
If you get stuck on a physics problem, take a break and come back to it later with a fresh perspective. Sometimes, stepping away from the problem can help you think of new ideas or approaches. You can also try discussing the problem with classmates or a teacher for additional insights and help.
One way to check if your answer to a physics problem is correct is to use the units and dimensions of the quantities involved. Make sure that your final answer has the correct units and dimensions as the given quantities. You can also try plugging your answer back into the original equation to see if it satisfies all the given conditions.
If you have tried multiple approaches and still can't solve a physics problem, it may be helpful to seek help from a teacher or tutor. They may be able to guide you towards a new approach or provide additional explanations and examples. It is also important to not get discouraged and keep practicing and learning from your mistakes.