# Solving Force Problems

The best way to do this is by fractions, but there are enough unit conversion guides out there that explain this concept.Remember not to panic, do it carefully and you will get your correct values.These will help whether the problem is in a homework assignment or on an exam. A car starting from rest, for instance, means your initial velocity is zero.

This will help you see the variables in front of you clearly, find the proper equation to use, and see what you’re missing.

It will also make the original, confusing text unneeded.

If you multiply velocity by time, you will get the distance (assuming constant acceleration), but if the car moved at 10 km per hour for 5 minutes, multiplying 10 by 5 will not give you the right answer.

Rather, you will need to either convert the kilometers per hour to kilometers per minute, or (and probably easier) convert 5 minutes to units of hours.

This semester I started tutoring in the physics and math study center.

I am the only “pure” physics tutor – the rest of the tutors are mathematicians or engineers who feel very comfortable with mathematics (justly so, they’re all quite awesome).

What you are expected to do is to understand the concepts and use the tools available to you.

The most important of those tools are the formulas.

Physics – and most science subjects – can be very complicated. This is your time to take a deep breath, close your eyes, and count to five. So you understand the physical situation now, and you know what subject this question deals with (or multiple subjects).

Describing our world is not always intuitive, and sometimes requires a mathematical and conceptual understanding that is very advanced. In lower level physics, most questions can be solved by simple formulas. Is it Superman’s velocity as he flies to save Lois Lane a certain distance away? Now, read the question again, and make sure you are clear on what it actually requires you to find.

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