SOLUTION: Hooke�s law states that the distance D a spring stretches varies directly with the weight W attached to the spring. When a weight of 40 pounds is attached, the spring stretches 5

Question 1056614: Hooke�s law states that the distance D a spring stretches varies directly with the weight W
attached to the spring. When a weight of 40 pounds is attached, the spring stretches 5 inches.
a. Express the distance that a spring stretches as a function of the weight attached.
b. Find the distance that the spring stretches from a 65 pound weight attached.

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Hooke�s law states that the distance D a spring stretches varies directly with the weight W attached to the spring.
When a weight of 40 pounds is attached, the spring stretches 5 inches.
a. Express the distance that a spring stretches as a function of the weight attached.
D(w) = k*w
5 = k*40
k = 1/8
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D(w) = (1/8)w
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b. Find the distance that the spring stretches from a 65 pound weight attached.
D(65) = (1/8)65 = 8.125 inches
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Cheers,
Stan H.
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