A Rocket Is Launched Straight Up from the Surface of Earth

question 22

Multiple Choice

A rocket is launched straight up from the surface of Earth with a speed v, such that the rocket reaches a maximum height of R_{E above} the surface. Find the launch speed of the rocket. Neglect air resistance R_E = 6.38 x 10⁶ m, M_E = 5.98 x10²⁴ kg, G = 6.67 x10^-11 N · m²/kg²) .

• A) 2.81 km/s
• B) 5.59 km/s
• C) 11.2 km/s
• D) 7.91 km/s
• E) 9.68 km/s

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