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# Mechanics 2 (statics of rigid bodies) watch

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1. In this question i know how to get momentums but i dont know how you get the rotations(clockwise or anticlockwise)
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2. (Original post by SOREN_TORETTO)
In this question i know how to get momentums but i dont know how you get the rotations(clockwise or anticlockwise)
Do you mean moments?

You probably need to ask your teacher to explain the directions. It is hard to do without gesturing.
3. (Original post by SOREN_TORETTO)
In this question i know how to get momentums but i dont know how you get the rotations(clockwise or anticlockwise)
The normal reaction at the foot of the ladder is producing a claockwise mement while the friction force and weight are producing anti-clockwise moments
4. Im self learning >_<
5. (Original post by SOREN_TORETTO)
Im self learning >_<
Then you need to visualise the direction of the resolved forces rotating around the point you are taking moments about.
6. I tried but you can rotate them in both directions
7. (Original post by SOREN_TORETTO)
I tried but you can rotate them in both directions
Not if you travel in the direction of the resolved perpendicular force.
8. I see now buts its confusing do you have a video of explaining it
9. (Original post by SOREN_TORETTO)
I see now buts its confusing do you have a video of explaining it
I expect plenty exist. You can use Google as well as me.
10. I tried if you find one tell me and thx ^_^

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11. (Original post by SOREN_TORETTO)
I tried if you find one tell me and thx ^_^

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I imagine it by visualising each arrow of force with a piece of string connecting it to the point you are taking moments about. Now when it moves think what way it would go. I know it's a bit late for that answer but I also struggled with the concept before and I'm hoping someone will find it useful at some point

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