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#1
March 25th 08, 04:28 AM
posted to alt.binaries.pictures.aviation
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Science Qs
Just saw a commercial with a guy hitting a golf ball towards Earth;
Question; How far could the ball travel, with 1/7th gravity? W hould something like that achieve escape velocity? Greg http://gregsplace.50megs.com 
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#2
March 25th 08, 05:57 PM
posted to alt.binaries.pictures.aviation
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Science Qs
Greg Farr wrote in
: Just saw a commercial with a guy hitting a golf ball towards Earth; Question; How far could the ball travel, with 1/7th gravity? W hould something like that achieve escape velocity? Greg http://gregsplace.50megs.com Believe that is answered somewhere on the NASA website. since 2 golf balls were really hit on the moon..
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#3
April 1st 08, 12:39 PM
posted to alt.binaries.pictures.aviation
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Science Qs
"Greg Farr" wrote:
Just saw a commercial with a guy hitting a golf ball towards Earth; Question; How far could the ball travel, with 1/7th gravity? Would something like that achieve escape velocity? I assume this is on the moon, where the gravity is 1/6 that of earth. You can hit a golf ball at approximately 70 m/sec, maximum. According to the "Design Guide to Orbital Flight" circular orbital velocity at lunar surface level is 1679 m/sec, and escape velocity is 2374 m/sec. The golf ball comes nowhere near those velocities. If you hit the ball for maximum range, the ball will travel about 3000 meters. That assumes you can hit the ball that hard--a spacesuit will really hamper your swing, as Al Shepard learned. --Bill Thompson
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#4
April 3rd 08, 08:16 AM
posted to alt.binaries.pictures.aviation
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Science Qs
On Tue, 1 Apr 2008 05:39:16 -0600, "William R. Thompson"
wrote: "Greg Farr" wrote: Just saw a commercial with a guy hitting a golf ball towards Earth; Question; How far could the ball travel, with 1/7th gravity? Would something like that achieve escape velocity? I assume this is on the moon, where the gravity is 1/6 that of earth. You can hit a golf ball at approximately 70 m/sec, maximum. According to the "Design Guide to Orbital Flight" circular orbital velocity at lunar surface level is 1679 m/sec, and escape velocity is 2374 m/sec. The golf ball comes nowhere near those velocities. If you hit the ball for maximum range, the ball will travel about 3000 meters. That assumes you can hit the ball that hard--a spacesuit will really hamper your swing, as Al Shepard learned. --Bill Thompson Maybe if you got together with Bruce R, you might get a diff outcome, don't really know who's right. Thanks Greg http://gregsplace.50megs.com
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