Problem
Non-Intuitive Results of Simple Experiments
Some results of simple physics experiments conducted on planet Earth are not intuitive. Examples include determining the acceleration of a ball tossed upwards at the point when its instantaneous vertical velocity is zero, and the time it takes two balls to hit the ground when they are tossed off the same horizontal surface at different initial horizontal velocities. Discuss each of these results and provide the reasoning that explains the apparently non-intuitive outcomes.