225 



^nemometer II. 



a) The short arm l.si m. 



1 speed 



T 

 59.5 

 59.0 



59.2 5 



59.50 



58.75 



2 speed 



3 speed 



T 



28.7 5 



29.5 

 30.0 



29.2 5 

 29.2 5 



N 



9 



9 



9 



9 



9 



T 



14.25 



15.00 



14.75 



15.0 



14.50 



N 



11 



10 



9 



10 

 10 



Average II6.00 13.4 5S.80 I8.2 30.20 



Hence \ve deduce: 



way in meters time speed '^ 

 a) The short arm 1) 94.8 8 59.2 1.6 o 



2) 

 •3) 



h) The long arm 



Hence 



a) 

 10 



1) 

 2) 



3) 



a = 

 a = 



189.75 



0.590 

 0.6 9 1 



29.35 

 14.70 



116.10 



, 58.80 

 30.2 



h = 0.57 6 

 h = 0.551 



3.23 

 6.46 



1.63 

 3.2 3 



6.29 



20.4 



sec "^i 

 1.77 

 4.6 

 10.21 



1.73 



4.64 

 10.13 



And also if we take the average of both arms 



v = 0.6 40 -f- 0.563 71. 



15 



