Question

Ok I need help on one of my physic's homework. Thanks. How to find the answer not just the answer.

If you go to

http://www.stmarysacademy.mb.ca/resource/File/Physics_Fundamentals/Physics_Fundamentals_-_Chapter_1.pdf

Page 39 you will see the problem it is # 35.

Answer 1

Welcome to OpenStudy. You will add those together but make sure they are on the same line i.e x-axis and y-axis. For this, you will have to resolve some forces into the components.

Answer 2

You might also notice that all the forces except the weight act either parallel or perpendicular to the slope of the hill

You will find it easier therefore if you resolve the forces in those directions - it is only the weight that you need to work with then.

Please also note as a general point to be discussed maybe with the tutor:
a pound is a unit of mass, not a force

It is truly important to distinguish between the two. In the old fashioned (U.S.) system you are using the unit of force is the poundal, or the lb weight.

The SI metric system has Kg as unit of MASS and Newton as unit of force.

Please take time to learn the difference - it is TRULY key to these physics questions