HELP PLS !!!!!!!!!!!!!!!!!!!!] A 13.3 kg box sliding across the ground decelerates at 2.42 m/s2. What is the coefficient of kinetic friction? (No unit)

Question

asked Jun 17, 2022 83.9k views

1 Answer

Tyler Marien · Answer 1 · 2022-06-21T01:53:44+0000

Answer:

0.25

Step-by-step explanation:

According to newtons law of motion

\sum F_x = ma

F_f = ma

nR = ma

nmg = ma

ng = a

n = a/g

g is the acceleration due to gravity

Given

a = 2.42m/s²

g = 9.8m/s²

Substitute into the formula;

n = 2.42/9.8

n = 0.25

Hence the coefficient of kinetic friction is 0.25