Large Meteors Can Impact the Earth with Speeds of 80,000 $\times$

question 61

Multiple Choice

Large meteors can impact the earth with speeds of 80,000 km/h.If such a meteor were to impact at a point on the plane of Earth's equator,resulting in a change of Earth's angular momentum by 80 × 10¹² kg • m²/s (an insignificant change,thankfully) ,calculate the mass of the meteor.(The radius of Earth = 6.38 $\times$ 10⁶ m.)

• A)3.4 \(\times\) 10⁴ kg
• B)5.6 \(\times\) 10² kg
• C)3.6 \(\times\) 10³ kg
• D)4.5 \(\times\) 10⁴ kg
• E)56 kg

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