If we neglect the effects of air resistance, the impact speed of a body of mass m released from rest at an altitude of 2.00 *10⁸ m above the surface of Earth m_e = 5.99 *10²⁴ kg, r_e = 6.37 *10⁶ m) is

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The impact speed can be calculated using energy conservation. The gravitational potential energy at the initial altitude is converted into kinetic energy at the Earth's surface. Solving for the final velocity gives approximately 1.10 * 10^4 m/s.

If We Neglect the Effects of Air Resistance, the Impact