Attach a tennis ball to the side of the bicycle wheel with a string. When the apparatus is in motion, cut the string to display the tangential escape of the ball. Place bucket 3 meters from wheel to drop it in with a 6 inch string rotating at 5 volts, practice.
Location: Wheel & Motor: C1-5; Ball: B3-4; Knife: DE-5; Power Supply: Q1-5