PROFESSOR TAIT ON IMPACT. 



239 



23/7/90. Plane Tree, I. 



N R 



H 



c 



T D A 







i 



c 



c 



e 



21-25 292-S 



1219-2 



3-8 



000206 20 0421 



0377 1-474 



1-608 



•286* 





670 



4-7 



255 08 1600 



1-626 2-651 



2-720 



•604 



j8 21-24 



221 



4-8 



260 05 2-798 



2-844 4-198 





•667 



7 21-5 



91 

 4-2 

 21 



5-0 



5-8 



271 03 

 314 









c 



[20] 

 [40] 



225-0 

 239-3 

 284-3 



r = 



= 225 + 12573(0- -0115) 2 



[15] 

 [35] 

 [42] 



232-8 

 2703 



291-8 



2329 

 2702 

 290-5 



A.[0] 



[-20] 

 [-40] 



225-0 

 2408 

 2860 



r- 



= 225 + 12O-81(0--O128) 2 



[-30] 

 [-42] 



259-7 

 293-0 



2599 

 291-7 



Vi,[0] 



[10] 

 [20] 



270-8 

 274-4 

 286-0 



r = 



= 2708 + 131-31(0- -0087) 2 



[24] 



293-0 



292-9 



y 2 >[0] 



[-10] 

 [-20] 



270-8 



274-7 

 286-0 



r = 



= 270-8 + 121-46(0 --0047) 2 



[-24] 



292-7 



292-6 



* Note. — It is 



clear from this value of e, and from the amount of the first rebound, that the cyl 



mder was 



not home in 



the lead-block. This fall is therefore not trustworthy in some of its details. 



II. 



N 



22-9 



ft 22-5 

 y, 227 



R 



3015 



H 



12192 



1552 



427 



162 



75 



3-7 



C 



3-0 

 3-8 

 40 

 42 



000170 

 215 

 225 

 237 



D 



1-6 

 1-2 



•6 

 •4 



o c 



0388 036 

 1037 1039 



A 2 

 o c 



0924 1-028 

 1-867 1-919 



1-982 1-942 3-271 



•42 



•555 



•606 



A, 



[- 



[- 



Yv 



y 2 : 



[■ 



[ 



[0] 



[20] 

 [40] 



[0] 

 -20] 

 -40] 



[0] 

 [10] 

 [20] 



[0] 

 -10] 

 -20] 



1466 

 1623 

 2122 



1466 

 164-5 

 215-5 



258-8 

 262-8 

 275-5 



258-8 

 262-9 

 275-5 



r == 146-6 + 140-50(0 - -0143) 2 



r = 146-6 + 135-91(0- -0141) 2 



r = 258-8 + 142-80(0 - -0072) 2 



r = 258-8 + 139-52(0 - -003) 2 



[30 ] 1830 1830 



[605] 300-9 299-1 



[-10 ] 151-4 1514 



[-50 ] 253-7 253-5 



[-60-5] 3022 302-2 



[32] 302-2 302-2 



[-32] 301-1 301-8 



