- #1

ACLerok

- 194

- 0

Oh and this as well:

To stretch a spring a distance x_1 from its unstretched length, an amount of work of W must be done.

How much work must be done to compress this spring a distance x_2 from its unstretched length?

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- Thread starter ACLerok
- Start date

- #1

ACLerok

- 194

- 0

Oh and this as well:

To stretch a spring a distance x_1 from its unstretched length, an amount of work of W must be done.

How much work must be done to compress this spring a distance x_2 from its unstretched length?

- #2

lastlaugh

- 19

- 0

power is work/time

that should be a pretty good hint

that should be a pretty good hint

- #3

HallsofIvy

Science Advisor

Homework Helper

- 43,021

- 970

Oh and this as well:

To stretch a spring a distance x_1 from its unstretched length, an amount of work of W must be done.

How much work must be done to compress this spring a distance x_2 from its unstretched length?

You need to know either:

that the formula for work done in either compressing or stretching a spring a distance x is (1/2)kx

(what follows immediately from that formula)

that the work done in compressing or stretching a spring a distance x is proportional to x

IF W is the work done stretching the spring a distance x_1 and W_2 is the work done in compressing it a distance x_2, then

W/(x_1)

W_2= (x_2/x_1)

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