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A body is at rest under the action of three forces two of which are F1=4i and F2=6j then the third force A body is at rest under the action of three forces two of which are F1=4i and F2=6j then the third force
It is very simple You just need a force whose components cancel out F1 and F2 completely. Therefore F3=-4i -6j
Because body is at rest the three forces cancel out each other. Therefore F1+F2+F3 =0 Now after putting values we get F3=-4i-6i
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