oblicz tarcie klocka o masie m=70kg,jezeli f=0,3,a g=9,81m/s(do kwadratu)

T=mgf T=70kg*0,3*9,81m/s^2=206,01N

m=70kg f=0.3 g=9.81m/s^2 T=fN N=mg N=686.7N T=0.3*686.7=206.01N Odp. Tarcie klocka to 206.01 N.