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Mechanics (physics/maths)
By Armybuilder1 on 17/05/2011
Okay so basically i know how to go.
Resolve across then up.
Up
F-Pcos(50)
F=Pcos(50)
Across
R+Psin(50)-15g
Using what we know
F=Coeficiant of friction x R
so
F=0.2R
Now after that i have to eliminate R
However after doing it
I cant find the correct value for P which is 37
By Pyroclastic0 on 17/05/2011
I thought it would be the
maximum static friction = 0.2*15*g=Psin 50
but that's 38 :s
maximum static friction = 0.2*15*g=Psin 50
but that's 38 :s
By demomc on 17/05/2011
army, do u want me to figure this one out 
iv been revising mechanics all day 
iv been revising mechanics all day By Armybuilder1 on 17/05/2011
LOl go for it. i know ive done everything right on it though..
By demomc on 17/05/2011
come teamspeak
By Armybuilder1 on 17/05/2011
Im there
By demomc on 17/05/2011
Pcos50 = 0.2(15g – Psin50)
5Pcos50 = 15g – Psin50
5Pcos50 – Psin50 = 15g
5P – Ptan50 = 15g/Cos50
P(5 – tan50) = 15g/Cos50
P = 36.93
P=37 (2 s.f.)
5Pcos50 = 15g – Psin50
5Pcos50 – Psin50 = 15g
5P – Ptan50 = 15g/Cos50
P(5 – tan50) = 15g/Cos50
P = 36.93
P=37 (2 s.f.)
By creeper975 on 17/05/2011
Its all about M2 not M1
By demomc on 17/05/2011
we dont do m2 in my spec, we do s1 instead
By Armybuilder1 on 17/05/2011
| QUOTE: demomc @ May 17, 2011 08:57 pm) |
| we dont do m2 in my spec, we do s1 instead |
What he said.
Meh. Gf me failing mechanics tommorrow = resit yr13 again... Yay...
By markenzie1 on 26/05/2011
how about: mark + (advanced) mechanicks= empty room?
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