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mikael mikael
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10 years ago

 
An object attached to a spring is pulled across a frictionless surface. If the spring constant is 45N/m and the spring is stretched by 0.88 m when the object is accelerating at 2.1 m/s2, what is the mass of the object? 
A)
 
19 kg 
B)
 
16 kg 
C)
 
21 kg 
D)
 
24 kg 
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padrepadre
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10 years ago
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mikael Author
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10 years ago
Thanks sir, this seriously helps with my physics homework.
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