Calculating Net Force Two forces act on an object: 1) a force of magnitude F₁ and direction 0₁ 2) a force of magnitude F2 and direction 02 The net force on the object has a magnitude of Fnet and a direction of Onet- Solution: Forces must be added in component form (x and y separately): Fnet,x=F₁ cos 0₁ + F₂ cos 0₂ Fnet cos Onet Fnet y = F₁ sin 0₁ +F₂ sin 02 Fnet sin net The 2 equations above have 6 variables. So if 4 variables are given, the equations can be solved. Tip: Plug in decimals for sines/cosines of known angles. 3 4 F₁ 184N 305.6 F₁ 0₁ 170⁰ 0₁ 156⁰ N Type your answer... F₂ 349N F2 336N 0₂ 289⁰ 0₂ 301⁰ Fnet N Onet 244⁰
Calculating Net Force Two forces act on an object: 1) a force of magnitude F₁ and direction 0₁ 2) a force of magnitude F2 and direction 02 The net force on the object has a magnitude of Fnet and a direction of Onet- Solution: Forces must be added in component form (x and y separately): Fnet,x=F₁ cos 0₁ + F₂ cos 0₂ Fnet cos Onet Fnet y = F₁ sin 0₁ +F₂ sin 02 Fnet sin net The 2 equations above have 6 variables. So if 4 variables are given, the equations can be solved. Tip: Plug in decimals for sines/cosines of known angles. 3 4 F₁ 184N 305.6 F₁ 0₁ 170⁰ 0₁ 156⁰ N Type your answer... F₂ 349N F2 336N 0₂ 289⁰ 0₂ 301⁰ Fnet N Onet 244⁰
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter5: Newton's Law Of Motion
Section: Chapter Questions
Problem 23P: While sliding a couch across a floor, Andrea and Jennifer exert forces FA and FJ on the couch....
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