1 Now you to plan some experiments to study the effect of changing the mass while keeping the thrust from the fan constant. (Note that is best not to try and place masses on the magnetic deck of the fan cart. They may slam into the propeller when the cart hits the bumper at the end of the track and damage it.) Method question: you need a way of having the fan accelerate different, known masses and to analyze the motion via video capture. As noted immediately above you can't load mass directly onto the fan cart.How can you set up; an experiment so that you can vary the mass conveniently