Question

Calculate the force of kinetic friction exerted on the object when the normal force is 10 N
(un = 0.45).
(A) 45 N
(B) 4.5 N
(C) 0.45 N
(D) 0.045 N​

Answer 1

Fk = uN

Fk = 0.45 × 10 = 4.5 N

Option B). 4.5 N

Answer 2

Answer:

4.5N

Explanation:

KINETIC FRICTION= uMg= uN= 0.45*10=4.5 N