Mass is calculated by using an objects inertia. Since inertia is a quality of matter that resists motion, we can apply an increasing force to an object until it accelerates.
Then, by measuring its acceleration we can now determine its mass using the simple equation F=m×a, except rewritten as m=Fa.
So we divide the force that we applied by the acceleration rate and we get the objects mass.
Without inertia this cannot be done.
∴ Answer is C
Your going to have to take a picture or make a list of the substances so i know which are and are not a compound
Each substance in the mixture<span> keeps its own properties and can be </span><span>easily separated from the </span>mixture.<span> In a mixture of hydrogen and oxygen, molecules of both the gases will exist independently.</span>
The compound<span> on the other hand has properties different from the </span>elements it contains. In water as a compound of hydrogen and oxygen <span>what you will have is molecules of H20.</span>
The acceleration of the car : 2.5 m/s²
<h3>Further explanation</h3>
Newton's 2nd law explains that the acceleration produced by the resultant force on an object is proportional and in line with the resultant force and inversely proportional to the mass of the object
∑F = m. a
<h3 />
Mass of the car = 1200 kg
Forward force = 3400 N
Friction force = 400 N
The direction of motion of the friction force will be opposite to the forward force, so that both of them can be subtracted to get the value of the net force (net force: combination / sum of all forces acting on an object)
So the acceleration :
