Two Objects with Masses M₁ = 30,000 Kg and M₂

question 12

Multiple Choice

Two objects with masses M₁ = 30,000 kg and M₂ = 70,000 kg are initially very far apart and at rest. If due to gravitational attraction the two objects attract each other, calculate their total kinetic energy when their centers of masses are 100 km apart.

• A) 1.4 * 10^-3 J
• B) 1.4 * 10^-11 J
• C) 1.4 *10^-6 J
• D) 0.7 * 10^-3 J
• E) 0.7 * 10^-6 J

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