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Problema 14, va rog, urgent.

Problema 14 Va Rog Urgent class=

Răspuns :

m=m1+m2

Vectorial:F+G+N=ma

Scalar:Oy:N-mgcosa=0

Ox:F-mgsina=ma<=>141-105,75=15a<=>35,25=15a=>a=2,35 m/s^2

Vectorial:f+N2+G2=m2a

Scalar:f-m2gsina=m2a<=>f-32,25=11,75<=>f=44 N

Vectorial:F'+G+N=0

Scalar:Ox:F-mgsina=0=>F'=mgsina=32,25 N