Solution. The formula for calculating kinetic energy is
Kinetic energy $=\frac{1}{2} m v^{2}$
Here, Mass, $m=2 \mathrm{~kg}$
And, Velocity, $v=0.1 \mathrm{~m} / \mathrm{s}$
So, putting these values in the above formula, we get:
Kinetic energy $=\frac{1}{2} \times 2 \times(0.1)^{2}$
$$
=\frac{1}{2} \times 2 \times 0.1 \times 0.1
$$
Thus, the kinetic energy of the body is $0.01$ joule.