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roguekiller93
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1. Homework Statement
Calculate the net force acting on each object indicated in the following diagrams.
(diagrams attached) I am working on "B"
Homework Equations
Sine Law: sin a/a = sin b/b = sin c/ c
Cosine Law: c^2 = a^2 + b^2 -2ab*cos(c)
The Attempt at a Solution
C2 = (2W)2 + (17N)2 – 2(2)(17)Cos 45o
= 4 + 289 – 48.08326112
= 16 N
SinB/ 17 N = Sin 45 / 16 W
= 49o
∴ Net Force is 16 N (W49o N)
I am really struggling with this component of physics.I understand I got the wrong answer for the sine law because I rounded off too early in my cosine law calculations. However I am really struggling to understand how I got the wrong answer for the direction of my resultant vector. It is supposed to be 16 N [W 40 N].
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