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two forces of 54 N and 34 N act on an object. If the angle between them is 55 de

hellohi

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13 years ago

two forces of 54 N and 34 N act on an object. If the angle between them is 55 de

Ay foad, I know I gotta draw a triangle for this, so can you help me out cause I don't seem to get the answer.

I used the cosine law but for some reason I don't get the answer which is 78.6 N,

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BearPro

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hellohi Author

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13 years ago

Sorry for the late reply man, I solved it an hour after I asked this:/ Thanks for the help tho:)!!

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bio_man

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13 years ago

Quote from: hellohi (13 years ago)

Sorry for the late reply man, I solved it an hour after I asked this:/ Thanks for the help tho:)!!

Could you please post the solutions.

Quote from: foadbear (13 years ago)

Quote from: hellohi (13 years ago)

Ay foad, I know I gotta draw a triangle for this, so can you help me out cause I don't seem to get the answer.

I used the cosine law but for some reason I don't get the answer which is 78.6 N,

you have to give the direction too along which you want the force to be calculated, which is not given in the question.
you can resolve the two force vectors in their x and y components and then calculate the force in the desired direction ( x axis or y axis)

Excellent work!

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