Question
Asked Oct 10, 2019

If it requires 9.0 J of work to stretch a particular spring by 2.0 cm from its equilibrium length, how much more work will be required to stretch it an additional 4.0 cm?

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Expert Answer

Step 1

The energy required to stretch the spring is

U
2
х
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U 2 х

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Step 2

Use equation (1) to solve for spring constant.

2U
2(9.0J)
102m
2.0cm
lcm
45000 J/m2
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2U 2(9.0J) 102m 2.0cm lcm 45000 J/m2

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Step 3

The energy required to stretch the sprin...

2
6.0Cm 10m
lcm
1
(45000 J/m2
2
x6.0am
- 81.0J
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2 6.0Cm 10m lcm 1 (45000 J/m2 2 x6.0am - 81.0J

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