If a system of three concurrent forces F1 = 300 dynes, right; F2 = 450 dynes, 30 ⁰ up to the left and F3 are in equilibrium, what is the magnitude and direction of F3?

University Physics Volume 1
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ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter2: Vectors
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Problem 26P: In a tug-of-war game on one campus, 15 students pull on a rope at both ends in an effort to displace...
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Please answer both questions:
1.) If a system of three concurrent forces F1 = 300 dynes, right; F2 = 450 dynes, 30 ⁰ up to the left and F3 are in equilibrium, what is the magnitude and direction of F3?

2. )Using unit vectors ?̂ and ?̂, find the equilbrant of the following system of concurrent forces A = 120 lbs, 30⁰ down to the right, B = 80 lbs 12⁰ up to the right, C = 100 lbs, left and D = 60 lbs, down.

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