Quote (majorblood @ Nov 7 2016 07:45pm)
no the problem with saying "force * time = momentum" is that it doesn't take into account momentum that exists without force i.e. constant velocity
take an object that weighs 5kg traveling at a constant velocity of 1m/s for 10 seconds it would have a momentum of 5 kgm/s.
If you were to apply it to your formula of f*t = p then you'd get 0*10 = 5 which is not a true statement. There is no change of momentum in the above example but a momentum exists.
I am not trying to sound "science-y" I am trying to educate the uneducated. I genuinely think you learned something new today.
i'm not reading the rest
"uneducated" - saying delta momentum without mentioning that you also need to clarify that u need delta time
like you did.....
Quote (majorblood @ Nov 7 2016 04:13pm)
force + time =/= "the change" in momentum
force*time = Δp
the whole time you've been saying force * time = momentum which is not true in all cases as momentum can exist without force in equivalence with newton's first law
There might be hope for you still but i could be hoping for to much.
You seem to be well versed in understanding a change in time, one day you might even understand what an instant of time is.
For you next assignment, answer this question - is an instant of time a positive or negative number?
This post was edited by card_sultan on Nov 8 2016 12:53am