Question

An object having a mass of 10 kg is placed on a smooth surface. Static friction between
these two surfaces is given as the 15 N. Find the coefficient of static friction?
(A) 0.15
(B) 0.50
(C) 0.20
(D) 0.70​

Answer 1

Answer:

An object having a mass of 10 kg is placed on a smooth surface. Static friction between these two surfaces is given as the 15N. then the coefficient of static friction is 0.15 .

Answer 2

Answer:

A) 0.15

Explanation:

let coefficient of static friction be k

Mass of body = 10kg

then Normal force(N) = 98N

Static friction force=15N

as we know that

f=k×N

15=k× 98

k=0.1530

k= 0.15

If you put g=10m/s2

then you get exact value k=0.15