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Physics
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Draw FBD
@Yahoo! solve this...it is for you...i will assume your kinematics is prepared
u sure the information is enough

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Other answers:

decelleration = 0.5m/s^2
@zaphod Do u have answer key
Now, find alpha
i knw how to do the next one...i think we have to resolve it a = -g ( sin alpha)
mg sin x = ma
sin x = a/g
x = sin^-1 a/g
|dw:1346508274972:dw|
@ajprincess wat do u think?
for a) assuming constant acceleration, v^2 = u^2 + 2as
Yes.....we want 2 nd question
6.25 = 2.25 + 8a a = 1/2
now \[mgsin \alpha = ma\] |dw:1346511156184:dw|
so \[gsin \alpha = \frac{1}{2}\] \[\sin \alpha = \frac{1}{2g}\]
now inverse sine gets you alpha
Yup..thxx.....and i was correct

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