Sark, Samuel M. [from old catalog] · Circleville, Ohio, The author · leaf 46
the Earth to be 4,000 miles fromits center. Then the man would be 4,000 plus 8,000 whichis 12,000 miles from the Earths center, or 12,000 divided by4,000 equals 3 times as far as when he weighed i8olbs. The square of 3 is 9. Hence he would weigh one-ninthof 180 or 20 lbs. What would he weigh at the… … Fig. 6. 4. Newtons Second Law of Motion.—A givenforce has the same effect in producing motion, whether the 42 ASTRONOMICAL GEOGRAPHY. body on which it acts is in motion or at rest ; whether it isacted upon by that force alone, or by others at the sametime. In Fig. 6 suppose a ball at A to receive…
Astronomy, Juvenile and popular
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