The image shows a volcanic eruption.
2 answers:
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Answer:
72 J
Explanation:
Total kinetic energy will be tge sum of rotational and translational energy.
Rotational kinetic energy is given by where I is moment of inertia which is given by
and here m is mass, r is radius. Also,
hence making \omega the subject then
where v is the velocity.
Rotational kinetic energy=
This is same as the formula for translational kinetic energy which is given by
Therefore, total kinetic energy=
Substituting m with 2 kg and v with 6 m/s then total energy will be