JEE (Advanced) 2018 Paper-1 Question 2

Question 2

Consider a body of mass 1.0 ๐‘˜๐‘” at rest at the origin at time ๐‘ก = 0. A force $$\overrightarrow{F}=(\alpha t \hat{i}+\beta \hat{j})$$ is applied on the body, where $$\alpha=1.0 N S^{-1}$$ and $$ \beta=1.0$$N The torque acting on the body about the origin at time ๐‘ก = 1.0 ๐‘  is ๐œโƒ—. Which of the following statements is (are) true?

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