Obliczenie: 9mblNM - 1

F_tarc  = 
 
 μ* N
/ R
F_tarc =  
 μ* N
/ R
$$F_{tarc}$$ = $$\frac{\mu\cdot N}{R}$$
F_tarc =  
 N* μ
/ R
$$F_{tarc}$$ = $$\frac{N\cdot \mu}{R}$$