a large wheel is coupled to a wheel with half the diameter as shown. r 2r how does the rotational speed of the smaller wheel compare with that of the larger wheel? how do the tangential speeds at the rims compare (assuming the belt doesn't slip)? 1. the smaller wheel has four times the rotational speed and the same tangential speed as the larger wheel. 2. the smaller wheel has twice the rotational speed and the same tangential speed as the larger wheel. 3. the smaller wheel has half the rotational speed and half the tangential speed as the larger wheel. 4. the smaller wheel has twice the rotational speed and twice the tangential speed as the larger wheel