Answer:
k = 10000
Step-by-step explanation:
F = k(x)
Where k is the spring constant.
F = 1500N
x = 0.15m
=> 1500 = k (0.15)
=> k (0.15) = 1500
=> k = 1500/0.15
=> k = 150000/15
=> k = 10000
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