Answer:
<em>0.25</em>
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
<em>Hence the coefficient of kinetic friction is 0.25</em>
<em></em>
<h2><u>Answer</u></h2>
Both Kinetic energy and momentum of the system are conserved
Answer:
5N
Explanation
convert grams to kg and multipy with 10 (.5 *10)=5N