A spring has a natural length of 20 cm. A 40 N force is required to stretch the spring to a length of 30 cm. How much work (in Joules) is done in stretching the spring from 35 cm to 38 cm ? [Note: 1 Joule- 1 Newton-meter ]

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Chapter65: Achievement Review—section Six
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3. A spring has a natural length of 20 cm. A 40 N force is
required to stretch the spring to a length of 30 cm. How
much work (in Joules) is done in stretching the spring from
35 cm to 38 cm ?
[Note: 1 Joule- 1 Newton-meter ]
Transcribed Image Text:3. A spring has a natural length of 20 cm. A 40 N force is required to stretch the spring to a length of 30 cm. How much work (in Joules) is done in stretching the spring from 35 cm to 38 cm ? [Note: 1 Joule- 1 Newton-meter ]
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