Figure P9.75 shows a 100 g puck revolving at 100 rpm on a 20-cm-radius circle on a frictionless table. A string attached to the puck passes through a hole in the middle of the table. The end of the string below the table is then slowly pulled down until the puck is revolving in a 10-cm-radius circle. How many revolutions per minute does the puck make at this new radius?

College Physics
11th Edition
ISBN:9781305952300
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Chapter1: Units, Trigonometry. And Vectors
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Figure P9.75 shows a 100 g puck revolving at 100 rpm on a 20-cm-radius circle on a frictionless table. A string attached to the puck passes through a hole in the middle of the table. The end of the string below the table is then slowly pulled down until the puck is revolving in a 10-cm-radius circle. How many revolutions per minute does the puck make at this new radius?

 

 

affect
-24
10 24 kg • m/s. What is the recoil speed of the
5 shows a 100 g puck revolving at 100 rpm on
s circle on a frictionless table. A string attached
passes through
A. The 1
B. The f
C. The f
83. I By ap
100 g
as a resu
middle of the
20 cm
A. 4 m/:
d of the string
e is then slowly
ntil the puck is
- 10-cm-radius
any revolutions
oes the puck
ew radius?
D-cm-diameter turntable rotates at 100 rpm on
Analyzing a C
Understandin;
improve the p
lems 84-87,
FIGURE P9.75
a sauté demi
Transcribed Image Text:affect -24 10 24 kg • m/s. What is the recoil speed of the 5 shows a 100 g puck revolving at 100 rpm on s circle on a frictionless table. A string attached passes through A. The 1 B. The f C. The f 83. I By ap 100 g as a resu middle of the 20 cm A. 4 m/: d of the string e is then slowly ntil the puck is - 10-cm-radius any revolutions oes the puck ew radius? D-cm-diameter turntable rotates at 100 rpm on Analyzing a C Understandin; improve the p lems 84-87, FIGURE P9.75 a sauté demi
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