SOLUTION: Hooke's Law says that the force exerted by the spring in a spring scale varies directly with the distance that the spring is stretched. If a 11 pound mass suspended on a spring sc

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Question 1149671: Hooke's Law says that the force exerted by the spring in a spring scale varies directly with the distance that the spring is stretched. If a 11 pound mass suspended on a spring scale stretches the spring 4 inches, how far will a 21 pound mass stretch the spring? (Round off your answer to 1 decimal place.)
Answer by ikleyn(52776) About Me  (Show Source):
You can put this solution on YOUR website!
.

Use the proportion


    11%2F4 = 21%2Fx.


From the proportion, find  x = %284%2A21%29%2F11.


Use your calculator.

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