Beings on Spherical Asteroid Π Have Observed That a Large

question 39

Multiple Choice

Beings on spherical asteroid Π have observed that a large rock is approaching their asteroid in a collision course. At 7514 km from the center of the asteroid, the rock has a speed of 136.0 m/s and later at 2823 km it has a speed of 392.0 m/s. Use energy conservation to find the mass of asteroid Π. You can neglect any effects due to the parent star of the asteroid. (G = 6.67 × 10^-11 N ∙ m²/kg²)

• A) 4.582 × 10²¹ kg
• B) 9.164 × 10²⁷ kg
• C) 6.112 × 10²⁸ kg
• D) 4.582 × 10²⁰ kg

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