# Find Work

1. Nov 13, 2012

### warnexus

1. The problem statement, all variables and given/known data

2. Relevant equations

Work = F xcomponent * delta x

3. The attempt at a solution
The force is given as a resultant since it does not give a specificed x or y component. Any hints on how to do I find the x component?

2. Nov 13, 2012

### Staff: Mentor

It states that the force points in the x direction.

3. Nov 13, 2012

### warnexus

if thats the case the force would 33.5N , the work will be (33.5N)(16m) = 537 J which was wrong. I do not get where did I go wrong if all the information is given.

4. Nov 13, 2012

### haruspex

The force is not constant in magnitude. It increases from 0 (at x=0). You'll need to use integration.

5. Nov 13, 2012

### warnexus

if I have to use integration on force then it will be (2(ax^(5/2))/5 .

plugging in the value of a and x= 16m I got 214.6 J <- which is wrong. where did I go wrong?

6. Nov 13, 2012

### Staff: Mentor

That looks OK.
Double check that arithmetic.