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# Mechanics question watch

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2. That's a nice picture of an exam paper question, but how may we help you?
3. Moved to the Maths section
4. (Original post by Phichi)
That's a nice picture of an exam paper question, but how may we help you?
Sorry I attempted to delete it so I could move it to the maths section and deleted the text.

I'm still stuck with part ii even after help, I made two equations but got stuck as how to solve them.

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5. (Original post by GM16)
Sorry I attempted to delete it so I could move it to the maths section and deleted the text.

I'm still stuck with part ii even after help, I made two equations but got stuck as how to solve them.

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6. (Original post by TenOfThem)
From memory I believe they were
P cos a = 6
P sin a + 2.55g = R

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7. (Original post by GM16)
From memory I believe they were
P cos a = 6
P sin a + 2.55g = R

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Since you know the frictional force and mu, you know R

You also know g

When you have Pcosa and Psina you can divide so that you have tana
8. (Original post by TenOfThem)
Since you know the frictional force and mu, you know R

You also know g

When you have Pcosa and Psina you can divide so that you have tana
Ahhhh okay thanks, we haven't done much core 2 trig yet so that's why I was confused, thanks a lot!

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9. (Original post by GM16)
Ahhhh okay thanks, we haven't done much core 2 trig yet so that's why I was confused, thanks a lot!

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i think I helped you yesterday with the same problem.

if you are still stuck look at page 23 of the PDF booklet in this link

the question is very similar to yours.
10. (Original post by TeeEm)
i think I helped you yesterday with the same problem.

if you are still stuck look at page 23 of the PDF booklet in this link

the question is very similar to yours.
You did! Thanks a lot!

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11. (Original post by GM16)
You did! Thanks a lot!

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no worries

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Updated: January 16, 2015
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