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## Assumptions

• Let's find the horizon.
• The actor who plays Captain Hook, Colin O'donoghue, is 5'9, or 1.8 metres.

Using Ringbell.

So the horizon at 1.8 metres is 4.8 km. This is the number I'll use.

• Average height of storm clouds: 13 km

## The calculation

To get KE, I'll need mass and speed. To get mass I'll need volume and density. I've got density, 1.003 kg/m³, so I'll need volume.

### Volume

Cylinder Volume Formula

• V = π * r² * h

V = π * 4.8² * 13

V ≅ 941 km³ or 941000000000 m³

Density is 1.003 kg/m³, which means 943823000000 kg.

### Speed

The wind hits Lucy 0:36 and the storm has fully covered the sky at 0:41. So, 5 seconds.

It traveled at least its radius.

4800 metres / 5 seconds = 960 m/s

### Kinetic Energy

Kinetic Energy formula

• KE = 1/2 * (M * Velocity²)

KE = 1/2 * (943823000000 * 921600)

KE = 1/2 * 869827276800000000

KE = 434913638400000000 joules, or 103.94 megatons (7-A, Large City level)

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