Friday, June 8, 2012

F=ma

Imagine a particle, well even a stationary box, we consider it as a particle. For now, there are two forces, the weight and the normal reaction. So, to make it move, you need to have a force pushing on it. The force needs to be bigger than the resistance in order to move. If the force is not big enough, thus the particle would stay stationary foreverrr coz there are no resultant force. And they are equilibrium right. My point here is, at that particular situation, even if you want to move forward, or accelerate, and that acceleration is you, you cannot because of your own resistance. what might happen is just you either stay stationary or you decelerate or we say retardation occurs. By all means, I really mean you turn into a retard and at that stage, you and the resistance has already become one, so it would be more difficult for you to accelerate. But if you were to stay stationary, you are not at rest but you are moving with a constant velocity, but still, your force is equals to zero. Ok, so the acceleration part, even you were to accelerate, oh ok wait, take the direction of acceleration is to the right, stilllll, you are going to your right, but it doesnt right coz your resistance is always there, you are going against resistance. But if you were to go to the left, you will stil have a resistance, but now that resistance is the result of you going to the opposite direction which initially you were suppose to go, which means now, the resistance is you. And either way, you aint going up to your normal reaction nor down to your weight. Things like that aint gona happen. And to add on to it, imagine it was a rough surface. And might be that you have to accelerate, but you are on a slunting slope at an angle. That makes accelerating moree difficult becasue you need to overcome the resistance and your own weight. So, if you were to study Mechanics or have strong Physics concept, or seriously, your general common sense, you would understand this with a dash of figurative writing or understanding, you would get this. Simply derived from Newtons second and third law. And I dont want to be that way.

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