Question 4, 6.7.23

Part 1 of 7

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a. k=

(Type an integer or a decimal.)

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Suppose a force of 30 N is required to stretch and hold a spring 0.2 m from its equilibrium position.

a. Assuming the spring obeys Hooke's law, find the spring constant k.

b. How much work is required to compress the spring 0.4 m from its equilibrium position?

c. How much work is required to stretch the spring 0.3 m from its equilibrium position?

d. How much additional work is required to stretch the spring 0.2 m if it has already been stretched 0.2 m from its

equilibrium?