Net Work

Net Work

Open Ended

How did we find Fnet? What did we do with ALL the forces?

(Write your name and last initial in your answer)

Open Ended

Mr. Agresta and Patches O’Houlihan are dragging a bag of wrenches for dodge ball practice across a floor that has a friction force of 15N. If Patches pulls the bag with a force of 30N and I pull the bag with a force of 50N, what is the net work done on the bag 20m?

W_net=F_net*d

(Write your name and last initial in your answer)

Open Ended

Now the bag of wrenches is being pulled with a force of 10N by Patches O’Houlihan at a CONSTANT velocity. What must the force of friction be?

(Write your name and last initial in your answer)

W_net=F_netd

Open Ended

The bag of wrenches is being pulled with a force of 10N by Patches O’Houlihan at a CONSTANT velocity. Now that we know friction, what is the net work done?

(Write your name and last initial in your answer)

W_net=F_netd

Open Ended

The bag of wrenches is being pulled with a force of 10N by Patches O’Houlihan at a CONSTANT velocity. What is the work done by poor Patches?

(Write your name and last initial in your answer)

W=F*d

Open Ended

What can we say about the forces acting on an object if the net work is ZERO?

What does that mean about velocity?

Wnet=(Fnet)d

(Write your name and last initial in your answer)