Question

question 1
fill in newtons second law.
select
select
friction
mass
force
question 2
impulse is just a change in momentum

Explanation:

Step1: Recall Newton's Second Law

Newton's Second Law states that the net force acting on an object is equal to the product of its mass and acceleration. The formula is \(F = ma\), where \(F\) represents force, \(m\) represents mass, and \(a\) represents acceleration. In the context of the given dropdown options (Force, mass), the relationship is Force = mass × acceleration. Since the right - hand side of the equation in the problem is missing (assuming acceleration is a constant factor not in the dropdown, but based on the provided terms), the basic form from the dropdowns is Force = mass (when acceleration is 1 unit for simplicity in a conceptual fill - in, as the problem might be focusing on the main variables from the dropdown).

Answer:

Force = mass