When a force of 0.80 N is applied to a spring, the length of the spring is 90 mm.
When a force of 1.30 N is applied to the same spring, its length is 115 mm.
The spring obeys Hooke’s law.
What is the spring constant of the spring?
1 )
$8.9{\text{ }}N{\text{ }}{m^{ - 1}}$
2 )
$10{\text{ }}N{\text{ }}{m^{ - 1}}$
3 )
$11{\text{ }}N{\text{ }}{m^{ - 1}}$
$20{\text{ }}N{\text{ }}{m^{ - 1}}$
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