Chapter 2 TBR Physics 09 ver

[DarkJoker]

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I am kind of lost on this chapter. All these angles that I never used in my physics class. And like a million equations all derived one way or another. I took physics 1 and 2 a year ago, and it was NOT NEARLY in as depth as it is in this book. We barely used any trig, and definitely not learn how to derive equations from equations from equations.

Do I really need to know ALL these equations, and do I really need to know trig with everything to do with physics?

 

[MedPR]

I am kind of lost on this chapter. All these angles that I never used in my physics class. And like a million equations all derived one way or another. I took physics 1 and 2 a year ago, and it was NOT NEARLY in as depth as it is in this book. We barely used any trig, and definitely not learn how to derive equations from equations from equations.

Do I really need to know ALL these equations, and do I really need to know trig with everything to do with physics?

Yes you need to know trig. You need to know how to find x and y components (trig) and you definitely need to know sin, cos, and tan values for specific angles(0, 30, 45, 60, 90).

What is chapter 2? The Force chapter? What equations are in that one?

 

[DarkJoker]

Yes you need to know trig. You need to know how to find x and y components (trig) and you definitely need to know sin, cos, and tan values for specific angles(0, 30, 45, 60, 90).

What is chapter 2? The Force chapter? What equations are in that one?

Like a hundred, literally. Don't know which ones to memorize

 

[MedPR]

Like a hundred, literally. Don't know which ones to memorize

Oh, chapter 2 is the gravitation chapter.

Most of those equations are exactly the same as the linear motion equations (translational motion), just for angular motion.

You definitely need to know F=ma, the inverse square law, Fc=mv^2/r... beyond that, I don't really know what else is in that chapter.