Suppose that 4 J of work is needed to stretch a spring from its natural length of 32 cm to a length of 50 cm. (a) How much work (in J) is needed to stretch the spring from 34 cm to 42 cm? (Round your answer to two decimal places.)

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter1: Vectors
Section1.4: Applications
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Suppose that 4 J of work is needed to stretch a spring from its natural length of 32 cm to a length of 50 cm.
(a) How much work (in J) is needed to stretch the spring from 34 cm to 42 cm? (Round your answer to two decimal places.)
1.98 X J
(b) How far beyond its natural length (in cm) will a force of 30 N keep the spring stretched? (Round your answer one decimal place.)
135
cm
Transcribed Image Text:Suppose that 4 J of work is needed to stretch a spring from its natural length of 32 cm to a length of 50 cm. (a) How much work (in J) is needed to stretch the spring from 34 cm to 42 cm? (Round your answer to two decimal places.) 1.98 X J (b) How far beyond its natural length (in cm) will a force of 30 N keep the spring stretched? (Round your answer one decimal place.) 135 cm
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