An object with a mass of #7 kg# is on a surface with a kinetic friction coefficient of # 7 #. How much force is necessary to accelerate the object horizontally at #28 m/s^2#?
1 Answer
Mar 26, 2016
I found:
Explanation:
Consider the diagram:
We can use Newton's Second Law:
on the
where:
So we get from the second that:
into the first:
so: