# physics- TEST TMRW PLS HELP!

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how would i do this?

-----------------A-----------B--------
I<----1.5m------>l<--0.6m-->l<-0.3m->l

a carpenter carries a 6kg board . the downward force he feels on his shoulder (A) is .... ?

(B is where his hand is)

pls help!! i have so much difficulty with these questions!!!

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