With What Velocity Must a Body Be Projected Vertically Upward $\times$

question 30

Multiple Choice

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

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

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