Question

Consider a body of mass 1.0 at rest at the origin at time = 0. A force ⃗ = ( ̂ + ̂) is applied on the body, where = 1.0 −1 and = 1.0 . The torque acting on the body about the origin at time = 1.0 is ⃗. Which of the following statements is (are) true?

(A) | ⃗| = 1 3


(B) The torque ⃗ is in the direction of the unit vector + ̂

(C) The velocity of the body at = 1 is v ⃗ ⃗ =
1 2
(̂ + 2̂) −1

(D) The magnitude of displacement of the body at = 1 is 1 6

Answer 1

Giraud hesitate gayasuddin