380 | The Inverfe Method ee! a 
a oF *? ** 1 ie 
bi i , and Jatus reetuad pe saa 
v g—s r 
7 om 
- From what has been oBferved"s above it wills ‘ 
evidently follow, that, if the centripetal force 
~ CC [vary as] the, iquare of the diftance from 
the centre reciprocally, ‘the curve defcribed ay 
the body will be a conic fection,’ or circles. 
“All the common properties of bodies moving 
in conic feétions may eafily be deduced from 
the above. equations; but that is not the inten- 
| tion of this: Propofition. 
: Can. gi.” [fF in==3,5 tbe values of p found in 
he Prop. will become. * 
1. = m—t1 x Py - : 
A 72? a ‘me 1 
y, = + m—tL ; 4 
2 pHs xX Ms Belo Doth og? aaa 
ay: at x Py 
3 £, 2 ; > i <I. 
e oy x 
“* 
. y= mP* =x. P? 
2 ¢ m -y 3 
by a/) + n—1 ° ny _ aria 
me 1 . ; MPs 
° 2. 2S 
