The mechanical advantage ( MA ) of a wheel and axle is found by dividing the radius of the wheel by the radius of the axle. Which type of wheel and axle has the greatest mechanical advantage?

Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?