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Jan 17, 2021 at 12:32 comment added GiorgioP-DoomsdayClockIsAt-90 @Manar, force, like position and velocity, is a function of time and we assign a value at each instant $t$. If you move, certainly your position will change if you keep the same velocity for different interval of time. Nevertheless, this still allows to speak about your position at a time $t$.
Jan 17, 2021 at 12:00 comment added Manar It will be the same if I'm allowed to say that the 15 N and the 9N and their resultant the 15 N happened at the same time and more importantly for the same period of time. If I'm allowed to say that I can make the resultant force happen for a shorter or longer period of time than its components will it then be the only case that the resultant will be different than 15 N right?
Jan 17, 2021 at 11:38 comment added Manar So If I've a point and I apply to it at the same time for the same duration a horizontal force of $9N$ and a vertical force of $12N$, the resultant force should be $15N$ acting with an angle of $53.1°$ anticlockwise to the horizontal force of $9N$. And even if I increase that duration, say the first duration was $5$ seconds and now I make it $15$ seconds, the resultant force magnitude won't inscrease? Or will it?
Jan 17, 2021 at 11:16 history answered GiorgioP-DoomsdayClockIsAt-90 CC BY-SA 4.0