A student attempts to balance a meterstick which has a mass attached near one end. Eight cupcake cups with attached paper clip masses are observed falling in air. The effect of air resistance is apparent.
All necessary data is included for quantitative analysis.
May be used for quantitative analysis. Two balls with identical initial velocities race on flexible tracks. One of the tracks is nearly level while the other dips, stays low for a distance, then rises back to the finish. A ball dropped from rest leaves a trail of strobe images as it falls. All necessary data is included for quantitative analysis.