Calculating Work Using a Force vs Distance Graph

[Le_Anthony]

Homework Statement

Homework Equations

W=(Force component*displacement)

The Attempt at a Solution

This problem uses a graph to find the Work. So I used area equations to find the Work. From 5m to 10m the Force is constant 30N. Which is applied over a displacement of 5m. So the work done from 5m to 10m is 150J. Next, from 10m to 15m the work varries. Its initially 30N then it drops down to roughly 18N. So using a triangle, .5*(30N+18N)*(5m)=120J

Answer is 270J??

 

[Buzz Bloom]

Hi Le:

Your answer looks OK to me.

Regards,
Buzz

 

[Le_Anthony]

Hi Le:

Your answer looks OK to me.

Regards,
Buzz

Thanks Buzz!