In the given figure `F=10N, R=1m`, mass of the body is `2kg` and moment of inertia of the body about an axis passing through `O` and perpendicular to the plane of the body is `4kgm^(2)`. `O` is the centre of mass of the body.
If the ground is smooth, what is the total kinetic energy of the body after `2s`?
A. 25 J
B. 50 J
C. 75 J
D. 100 J