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sp3sp2sp
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Homework Statement
Force F⃗ =−11j^N is exerted on a particle at r⃗ = (8i^+5j^)m.
What is the torque on the particle about the origin? Express your answer using two significant figures. Enter coordinates numerically separated by commas.
Homework Equations
The Attempt at a Solution
F: 0i, -11j, 0k
r: 8i, 5j, 0k
F X r = (0-0)i - (0-0)k + (0 - -88)j
= 0, 0, 88
this is wrong because it should be -88, but I don't see why? It was my understanding that I should plug values into formula i - j + k. Thanks for any help.