With What Velocity Must a Body Be Projected Vertically Upward

question 37

Multiple Choice

With what velocity must a body be projected vertically upward from Earth's surface, in the absence of friction, to rise to a height equal to Earth's radius 6400 km) ?

• A) 4.3 * 10⁵ m/s
• B) 2.6 *10³ m/s
• C) 10⁵ m/s
• D) 3.6 * 10² m/s
• E) 7.9 * 10³ m/s

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