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September 19, 2014

September 19, 2014

Posted by **Technoboi11** on Saturday, March 3, 2007 at 2:11pm.

For Further Reading

* Physics/Math - drwls, Thursday, March 1, 2007 at 2:43am

Work is the integral of force x distance.

In this case,

------1.2

W = (Integral)4.5 exp(-0.4x)dx

------0.2

= 4.5/(-0.4)[exp(-0.4*1.2) - exp(-0.4*0.2)]

>>>>>>>>>>>>>>>>>>>>>>>>>>

Ok, so according to this W = 36.97 J

This, however, is the wrong answer. Did I do something wrong in my calculations???

Significant figures: the least precise x is in ONE significant figure. Geez. The most precise is two sif figures. You have the problem set up correctly.

I dont get the same final value as you, we are different by approximately a factor of ten.

I got it. 3.42. thanks

- Physics/Math -
**jasanpahaf**, Monday, November 19, 2012 at 2:19amhow do you get F0= 4.5N? My problem only says:

...by a force with a magnitude given by

F = exp(–3x), with x in meters and F in newtons...

am i missing any info by the program or i have to find that out?

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