- #1
Wolfin
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Homework Statement
See the attachment.
We're asked to find the masses of M1 and M2. I'm wondering how this is possible, 'cause there's two variables and only one known? Do I have to use sine/cosine law?
m3 = 0.1998 kg
T3 = (0.1998 kg)(-9.80 m/s^2) = -1.96 N
Vertical angle A (between T3 and T1) = 38.0 degrees
Vertical angle B (between T3 and T2) = 27.0 degrees
Homework Equations
F = ma
F = ma sin (Θ)
The Attempt at a Solution
I tried to solve with algebra:
m1 g sin (A) + m2 g sin (B) = m3 g
Gravity cancels.
m1 sin (A) + m2 sin (B) = m3 g
...And that's about as far as I got :(
Any help/hints would be appreciated muchly.. the Physics head decided we should only get two days to do our labs.. it's due tomorrow.