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A force of 20 lb is required to hold a spring stretched 2 in. beyond its natural length. How much work W is done
A force of 20 lb is required to hold a spring stretched 2 in. beyond its natural length. How much work W is done in stretching it from its natural length to 6 in. beyond its natural length? X ft-lb W=14.99
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Advanced Engineering Mathematics
Authors: Erwin Kreyszig
2nd Edition
471889415, 978-0471889410
