Respuesta :

Answer:

F = 250 N

Step-by-step explanation:

Given that,

Mass of an object, m = 50 kg

The coefficient of kinetic friction = 0.5'

We need to find the force of kinetic friction. The kinetic friction is given by the formula as follows :

[tex]F=\mu N[/tex]

N is normal force, N = mg

[tex]F=0.5\times 50\times 10\\\\F=250\ N[/tex]

Hence, the force of kinetic friction is 250 N. Hence, the correct option is (d).