Practical Mathematics K11Lenny throws a baseball to Kenny who is 20m away. The ball arrives in 500ms (0.5s).
Neglecting wind resistance and taking g = 10m/s2, to what height above the starting point does the ball reach, given that it is thrown from and received at the same height?

Although you may use different symbols, these formulae may provide some reminders:
s =ut + (1/2)at2 ; v2 - u2 = 2as ; v = u + at

Author: Leslie Green