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If Fhatk force is acting on particle has position vector (2hati-2hatj), then torque on it is …... .

Answer»


ANSWER :`F(hati-HATJ)`
`hattau=vecrxxvecF=(2hati-hatj)xxFhatk`
`:. hattau=2F(hatixxhatk)+F(hatjxxhatk)`
`=2F(-hatj)+F(hatj)=F(hati-2hatj)`


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