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(i) Find the torque of a force 7hati + 3...

(i) Find the torque of a force `7hati + 3hatj - 5hatk` about the origin. The force acts on a particle whose position vector is `hati - hatj + hatk`.
(ii) Show that moment of a couple does not depend on the point about which you take the moments.

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SL ARORA-System of particles & rotational Motion-EXERCISE
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