m = mass of the box
N = normal force on the box
f = kinetic frictional force on the box
a = acceleration of the box
μ = coefficient of kinetic friction
perpendicular to incline , force equation is given as
N = mg Cos30 eq-1
kinetic frictional force is given as
f = μ N
using eq-1
f = μ mg Cos30
parallel to incline , force equation is given as
mg Sin30 - f = ma
mg Sin30 - μ mg Cos30 = ma
"m" cancel out
a = g Sin30 - μ g Cos30
inserting the values
1.20 = (9.8) Sin30 - (9.8) Cos30 μ
μ = 0.44
I believe that the answer to this would be B
Hope this helped
A. gravity is your answer hope this helps
Answer:
The vertical columns on the periodic table are called groups or families because of their similar chemical behavior.
Explanation:
Answer:
It is cause by radiation that's the answer
Explanation: the heat project sun rays towards the popcorn which causes it to pop