Class/Course - Medical Entrance

Subject - Physics

Chapter - Laws of Motion

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Q.1 An object of mass 3 kg is at rest. If a force $\vec{F} = (6t^{2}\hat{i} + 4t\hat{j})N$ is applied on the object, then the velocity of the object at t = 3s is
  $18\hat{i} + 3\hat{j}$
  $18\hat{i} + 6\hat{j}$
  $3\hat{i} + 18\hat{j}$
  $18\hat{i} + 4\hat{j}$