Homework Help: Physics/Math

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

A can of sardines is made to move along an x axis from x1 = 0.2 m to x2 = 1.2 m by a force given by F = iF0exp(-0.4x), with x in meters and F0 = 4.5 N. (Here exp is the exponential function.) How much work is done on the can by the force?

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 2:19am
how 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?

Answer this Question

Related Questions

Physics/Math - A can of sardines is made to move along an x axis from x1 = 0.2 m...
Re: Physics/Math - A can of sardines is made to move along an x axis from x1 = ...
economics - There are two goods 1 and 2. Denote by (x1; x2) the consumption ...
Calculus (Urgent!!) - Hello everyone, I need help with the following problems. ...
art - two vectors x1 = (20 m) x and x2 (15 m) x, compute and show graphically (a...
Math - Which of the following are linear equations in x1, x2 and x3? (a) x1 + ...
Calculus - Find the partial derivative y with respect to s for the following ...
intro to probability - In a study of particulate pollution in air samples over a...
ECON - PLEASE CHECK AND CORRECT MY ANSWERS!!!! MRTS = marginal rate of technical...
QSO 51O - Problem 4: Module 8 (30 points) The Exeter Company produces two basic ...

For Further Reading

First Name:
School Subject:
Answer: