Consider a body of mass 1.0 ݇݃kg at rest at the origin at time t=0. A force F^{\to}=(\alphati^{-}+\betaj^{-}) is applied on the body, where \alpha=1.0N\text{/}s and \beta=1.0N.The torque acting on the body about the origin at time t=1.0s is \tau^{-}. Which of the following statements is (are) true? [JEE Adv 2018 P1]

The torque \tau^{-} is in the direction of the unit vector +k^{-}

The velocity of the body at t=1s is v^{-}=1/2(i^{-}+2j^{-})m\text{/}s

The magnitude of displacement of the body at t=1s is 1/6m

JEE Advanced 2018 Paper 1

Section: Physics

Question : 2 of 54

Marks: +1, -0

Consider a body of mass 1.0 ݇݃kg at rest at the origin at time t=0. A force

→

=(αt

−

+β

−

) is applied on the body, where α=1.0N/s and β=1.0N.The torque acting on the body about the origin at time t=1.0s is

−

. Which of the following statements is (are) true?

[JEE Adv 2018 P1]

Go to Question:

Prev Question

Next Question