physics
posted by calous  HELP PLEASEE!!! .
How will you find the height of a tall tower using a longenough thread? You only have a stopwatch with you. So you can only measure time and not length. Explain the method by stating the formula you will use to calculate the height of the tower.

h= 1/2 g t^2
drop the spool of thread. 
you would google it
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