Ok, we had this stupid lab where there is a cart with a fan on. One time the cart was moved by the fan while the cart was empty, the other time an extra weight was added. I need to find the force applied by the fan in both cases. How the hell do you do that? What would be the answer? The Weight added = 1KG Mass of cart = 500g mass of fan = 275g I need the work too. Thanks. EDIT: tell me if u need any other info , i got everything plus rep for help
rep is not a form of currency.... you cannot offer it as a reward. ps... work=force * distance force = work/distance you need to figure out that ---- before anything
Use your laws of motion, find the velocity of the one one with the fan and without weight, then find the velocity of the one without the fan. You'll get the wind speed. Would be easier to help if you posted all your readings in more detail like initial and final velocity, displacement of the cart and if the friction is negligible.
