Question
25 J of work is required to stretch the spring by 2cm. Find the work required to be done to further extend the spring by 4cm.
Solution
Given,
Amount of work required to stretch the spring = 25 J
Let k be the spring constant of the spring.
As 25J of work is required to stretch the spring by 2cm, thus
...(1)
Let W work be required to further stretch the spring by 4 cm.
Therefore,
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...(2)
Dividing equation (2) by (1), we get
i.e.,![<pre>uncaught exception: <b>mkdir(): Permission denied (errno: 2) in /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/util/sys/Store.class.php at line #56mkdir(): Permission denied</b><br /><br />in file: /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/util/sys/Store.class.php line 56<br />#0 [internal function]: _hx_error_handler(2, 'mkdir(): Permis...', '/home/config_ad...', 56, Array)
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Amount of work required to stretch the spring = 25 J
Let k be the spring constant of the spring.
As 25J of work is required to stretch the spring by 2cm, thus
...(1) Let W work be required to further stretch the spring by 4 cm.
Therefore,
...(2) Dividing equation (2) by (1), we get
i.e.,
