A 1 billion ton glacier (1,000,000,000,000 kg) is moving at 0.000002 m/s (about 15 cm a day). Calculate the momentum of the glacier.

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Answer 1

To calculate the momentum (\( p \)) of the glacier, we can use the formula:

\[ p = m \cdot v \]

where:

• \( m \) is the mass of the glacier (in kg),
• \( v \) is the velocity of the glacier (in m/s).

Given:

• Mass of the glacier, \( m = 1,000,000,000,000 , \text{kg} \)
• Velocity of the glacier, \( v = 0.000002 , \text{m/s} \)

Now, substituting the values into the formula:

\[ p = 1,000,000,000,000 , \text{kg} \times 0.000002 , \text{m/s} \]

Calculating that:

\[ p = 1,000,000,000,000 \times 0.000002 = 2,000 , \text{kg m/s} \]

So, the momentum of the glacier is:

\[ \boxed{2000 , \text{kg m/s}} \]