Calculate how far the earth moves when a pair of keys are dropped?

Subject: Calculate how far the earth moves when a pair of keys are dropped?

Date: Sat Jul 18 20:24:34 2009
Posted by Jane
Grade level: 10-12 School: Macaulay Summer Scholars Academy
City: New York State/Province: NY Country: US
Area of science: Physics
ID: 1247973874.Ph

Message:


Hi,
Knowing earth's mass is 5.9742 * 10^24kg, keys' mass is 150g, and acceleration 
of keys is 1meter/second can I find the distance the earth moves with the 
formula d = (v1 + v2)/2 * t or is that only for moving objects on earth.
Sorry to bother you,
Jane

Re: Calculate how far the earth moves when a pair of keys are dropped?

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