According to Hooke's Law, the force required to hold the spring stretched x m beyond its natural length is given by
f(x) = kx,
where k is the spring constant.
Suppose that 6 J of work is needed to stretch a spring from its natural length of 24 cm to a length of 33 cm.
Find the exact value of k, in N/m.
k =
Incorrect: Your answer is incorrect.
N/m
(a)
How much work (in J) is needed to stretch the spring from 29 cm to 31 cm? (Round your answer to two decimal places.)
Incorrect: Your answer is incorrect.
J
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