A Projectile Is Fired Straight Upward from Earth's Surface with a Speed

question 51

Multiple Choice

A projectile is fired straight upward from Earth's surface with a speed that is half the escape speed.If R is the radius of Earth, the highest altitude reached, measured from the surface, is:

• A)R/4
• B)R/3
• C)R/2
• D)R
• E)2R

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