What F is used to measure force?

This is all about Balancing act. And I need to know it for my homework so if you know the answer can you just help please thank you.........:)........... And one more question..... What W is the amount of forces with which gravity is pulling down something?................And once more thank you!!!!!!!!!!!!!1111......:D

Answers
The W is probably weight. When you say what F is used to measure force, are you looking for an instrument?
er
28 April 2011
yes I am looking for an instrument... And thank you for telling me the weight....:)
denisakoskova
30 April 2011
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