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Va rog mult ajutati-ma! E urgent! Multumesc anticipat!

Va Rog Mult Ajutatima E Urgent Multumesc Anticipat class=

Răspuns :

Vectorial:N+G+F+Ff=ma

Ox:F-Ff=ma

Oy:N-mg=0=>N=mg

Ff=uN=umg

F=ma+umg=3•2+0,1•3•10=6+3=9 N

N=mg=3•10=30 N

Vectorial:F'+N+G+Ff=0

Ox:F'-Ff=0=>F'=Ff

Oy:N-mg=0=>N=mg

Ff=uN=umg

F'=umg=0,1•3•10=3 N