Maybe the diameter of the tape is slightly increasing due to centripetal force so the revolutions stay the same, the Phat Wang_s halfway Inn Bangkok Thailand shirt increases and the speed goes up. The thicker one is less compliant so de diameter stays the same.It bounces because it’s lighter, and the treadmill surface isn’t smooth, nor is the motion. Small perturbation in the normal direction to the treadmill will allow for a lighter object to bounce, even slightlyThe green tape has less overall surface area which in turn means less friction overall. The friction is what’s ultimately slowing down the black tape compared to the green tape. Let’s say I have a hula hoop and a car wheel, (both of which are the same diameter) if I push them both at the same speed the hula hoop will travel farther more quickly due to it having less drag (less friction) than the car wheel.
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In mechanics, the moment of inertia is directly related to how much energy is needed Phat Wang_s halfway Inn Bangkok Thailand shirt spin the object. The object with the smallest moment of inertia requires the least amount of energy, speeds up quicker, and therefore wins. The exact definition of moment of inertia requires calculus to understand, so I’ll leave the research to you of you want to learnMoment of inertia! It has to do with how an object’s mass is distributed around its axis of rotation. Basically, it looks like the green tape has its mass more concentrated towards the center than the other tapes, meaning it has a smaller moment of inertia. Objects with smaller moments of inertiawill have higher angular accelerations for the same applied torque, which is why a certain tape would win.I think it is because newton’s 1st law. A moving object should stay moving, and a stationary object should stay stationary as long as no external force is applied. Which one wins depends on which side is smoother(and thus, less friction and energy lost).