Q:

How to measure g using a metre stick and a ball

Can I measure the value of g using only a metre stick and a ball? I am not supposed to use a stopwatch and that has been the problem.
NOTE: I do not know if a solution exists or not.

A:

No you can't. You can see this because you are only given things that can define a units of length and mass (the meterstick and the ball), so you need something that can define the unit of time. If there was another process, nongravitational, with which you could define a unit of time, then you can find g relative to this unit of time, but absent such a thing, you can only define the unit of time by dropping something or measuring something oscillate in gravity, and then you are stuck.

