The best approach to solving a tough physics math problem is to carefully read and understand the problem, identify the given information and the unknowns, and then choose the appropriate formula or concept to solve for the unknown.
You can ensure that you are using the correct formula or concept by checking if the units of measurement match on both sides of the equation, and if the final answer has the correct units as well.
If you get stuck on a step in the problem, take a break and come back to it with a fresh perspective. You can also try solving a similar, simpler problem to gain a better understanding of the concept.
Yes, it is perfectly acceptable to use a calculator to solve a physics math problem. Just make sure that you input the correct values and units of measurement into the calculator.
If you are still struggling to solve the problem, don't hesitate to seek help from a teacher, tutor, or classmate. You can also try searching online for similar problems and their solutions for additional guidance.