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Two forces of 60n and 80n acting at an angle of 60degree with each other pull an object. What single pull would replace the given forces. Pls explain how to calculate the direction properly. Is it true that we can get two angles w.r.t 2 diff vectors? I think thats where I am getting confused. Pls see this picture and tell me if I have made a mistake. pls ans my question

 
Two forces of 60n and 80n acting at an angle of 60degree with each other pull an object. What single pull would replace the given forces. Pls explain how to calculate the direction properly.
Is it true that we can get two angles w.r.t 2 diff vectors? I think thats where I am getting confused. Pls see this picture and tell me if I have made a mistake.
pls ans my question

Grade:12

1 Answers

Arun Kumar IIT Delhi
askIITians Faculty 256 Points
6 years ago
Hello Student,
Your image isn’t visible.
The single force that replace them both is
\\\vec F_{res}=60n \vec {n1}+80n \vec {n2} \\where \\\vec {n1}. \vec {n2}=cos60=1/2
Thanks & Regards
Arun Kumar
Btech, IIT Delhi
Askiitians Faculty

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