ch11-p023 - 23. If we write r = x i + yj + zk, then (using...

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23. If we write G rxyz =++ ### i j k, then (using Eq. 3-30) we find G G r F × is equal to yF zF zF xF xF yF zy xz y x −+ di bg ## # ijk . (a) Plugging in, we find () ( ) ˆˆ 3.0m 6.0N 4.0m 8.0N k (50N m) k. τ =− = ªº ¬¼ G (b) We use Eq. 3-27, | | sin , G G rFr F ×= φ where is the angle between G r and G F . Now
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