Neat Little Demonstration of Relative Motion A cart moving at constant velocity shoots a ball straight upwards. Since the ball has the same translational velocity as the cart, it is caught when it comes back down. VIDEO-> Facebook Prev Article Next Article Experiments Checkout these cool gadgets... Related Posts Fire From Anti-Freeze? Cool Experiment Spinning Magnet Levitates What Happens When You Try to Skydive With an Umbrella? Measuring People’s Reaction Time With a Ruler and High Speed Camera Compilation of Amazing Science Experiments Think You’re Tough? Try This Feat of Strength!