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# A level Maths M1 statics watch

1. In statics I normally resolve forces on inclined planes in the direction of the plane or of the normal reaction. Why is it that in this question I need to resolve forces vertically and horizontally?
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2. (Original post by AAls)
In statics I normally resolve forces on inclined planes in the direction of the plane or of the normal reaction. Why is it that in this question I need to resolve forces vertically and horizontally?
Who said you can do it as you used to do.
3. (Original post by Duke Glacia)
Who said you can do it as you used to do.
The textbook.
4. You can still resolve parallel and perpendicular to the plane in this problem.
5. (Original post by EricPiphany)
You can still resolve parallel and perpendicular to the plane in this problem.
(Original post by AAls)
The textbook.
First work out the problem on your own then see the solution. If your answers are right then you are right. Wirking out that wY actually helos you develop your priblem solving skills.
6. (Original post by Duke Glacia)
First work out the problem on your own then see the solution. If your answers are right then you are right. Wirking out that wY actually helos you develop your priblem solving skills.
why was I quoted
7. I don't understand what you are asking. This question is a statics question using methods you've used before in other statics Qs.

If it's P being a horizontal force that's the problem, would it help if I told you the angle between force P and the force parallel to the plane is alpha?

The question has also been nice enough to tell you the value of Tan(alpha), and thus you can find the value of Cos(alpha) and Sin(alpha); so when working out P you won't have any terms with alpha in.

If you want more hints lemme know
8. (Original post by EricPiphany)
why was I quoted
You suggested that there is an alternate solution. Which insipired me to create the post. Your post was my inspiration..........
9. (Original post by Jamdroid)
I don't understand what you are asking. This question is a statics question using methods you've used before in other statics Qs.
If it's P being a horizontal force that's the problem, would it help if I told you the angle between force P and the force parallel to the plane is alpha?

The question has also been nice enough to tell you the value of Tan(alpha), and thus you can find the value of Cos(alpha) and Sin(alpha); so when working out P you won't have any terms with alpha in.

If you want more hints lemme know
You don't have to find and in this case, but it won't hurt.

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Updated: October 26, 2015
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