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Scholar
Karma Points: 200
Respect (94%):
Date Posted: 6/19/2008 1:23:01 PM  Status: Live
mass
Course Textbook Chapter Problem
General Physics N/A N/A N/A
Question Details:
A spring stretches 3.5cm when 200 g mass is hung on it.  The spring constant, k is nearly equal to  (unit of measurement is in N/m):
 
a) 56,000
b) 5,600
c) 560
d) 56
e) 5.6
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Answers:

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Oracle
Karma Points: 57,881
(NIMBLE - the National Institute of Monkey Business and Learning)
Date Posted: 6/19/2008 1:24:08 PM  Status: Live
Asker's Rating: Lifesaver   
Response:
 
A spring stretches 3.5cm when 200 g mass is hung on it.  The spring constant, k is nearly equal to  (unit of measurement is in N/m):
 
a) 56,000
b) 5,600
c) 560
d) 56
e) 5.6

 
      kx = mg        k  =  mg/x  = 0.200 * 9.8 / 0.035  =    56
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thx
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Guru
Karma Points: 2,126
(Paideia (Atlanta, GA))
Date Posted: 6/28/2008 3:14:36 PM  Status: Live
Asker's Rating: Helpful   
Response:
d) 56
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Sage
Karma Points: 4,367
Date Posted: 6/28/2008 3:36:10 PM  Status: Live
Asker's Rating: Helpful   
Response:
use the formula:
k = mg/x 
k = 0.200 X 9.8 / 0.035 
k = 56

choice D is correct
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