Newton f = ma, force can be average force, acceleration can be average acceleration

Newton f = ma, force can be average force, acceleration can be average acceleration

F=ma
Generally speaking, the acceleration a depends on the force F, and the relationship between them is instantaneous, that is, the force is large, the acceleration is large, the force is small, the acceleration is small, the force disappears, and the acceleration disappears immediately. Only when the combined external force of the force acting on the object is constant, the acceleration is constant; if the combined external force of the force acting on the object is variable, the acceleration also changes, Because both of them are directional vectors, we can't deal with them simply by averaging
There is a special case, such as the direction of the combined external force on the object is always in a straight line (that is, the direction is constant), but its size changes uniformly with time. In this case, the combined external force of the object in a certain time can be calculated by using the arithmetic mean, and then the average value of its acceleration can be calculated
Besides, there are many kinds of average of physical quantities, such as arithmetic average, geometric average, weighted average, harmonic average and so on

Judgment: Newton is the force unit that makes a kilogram mass object produce 1 meter acceleration per second

1n is defined as the force that makes a 1kg object produce 1m / S ^ 2 acceleration

How does Newton calculate acceleration? A = f / m, is the unit of force and mass the same in Newton's time? If the unit of force and mass is the same at that time, where is the value of G
According to Newton a = f / m, then the acceleration of gravity g = g / m, if the unit of gravity and mass in Newton's time is the same, how can we get g = 9.8... Because under the action of gravity, the gravity and mass of an object are equivalent at the same place, then according to this view, the acceleration of gravity is about 1? I know my conclusion is wrong, But I just can't understand the logic. Thank you!

In fact, the initial formula of F = ma is f = KMA. Only when the units of M and a are the basic units in the international system of units, K is equal to 1. In other cases, K is not equal to 1

1 Newton is the force required for an object with a mass of 1 kg to produce an acceleration of 1 meter every second,
One newton is the force required for an object of one kilogram to produce an acceleration of one meter per second

a newton equals to the force that imparts an acceleration of 1 m/sec/sec to a mass of 1 kilogram