But the effect of gravity should look the same. Now, if we put this vertical acceleration together with the fixed horizontal velocity, we get something special, called projectile motion.

A dude jumping on a moving trampoline is a great excuse to dive into the unexpected properties of projectile motion.

Boys have a natural advantage at physics because their ability to ‘pee’ up walls helps then understand projectile motion, academics have controversially claimed. So-called ‘playful urination ...