mass of a paintball
- Thread starter Revolt
- Start date
Ok, my calculations wereurm something along the lines of
it travels roughly 4.3cm in 5 ms
so thats roughly 2cm in 2.5 ms
hence the speed is roughly 8.6m/s (i converted cm > m and ms > s)
so if it travels roughly 2cm at an average speed of 8.6m/s starting from rest i used a = v-u/t which is (8.6m/s)/(0.025s)
altho now i get an acceleration of 344m/s/s
urmmmmmm :S confused !
Av time = 5ms or .05s
Distance = 40mm or 4cm
So, speed=distance/time=.8m/s
Ok, so given that average speed between 2 point is 0m/s and .8m/s then acceleration should be .8m/s divided by time (.05s)
Av Acceleration = .8m/s / .05s = 16m/s/s
Think thats right.....
Ok, this is sad........I love paintball but boy I must be bored to be doing this!!
Ok, my calculations were
Av time = 5ms or .05s
Distance = 40mm or 4cm
So, speed=distance/time=.8m/s
Ok, so given that average speed between 2 point is 0m/s and .8m/s then acceleration should be .8m/s divided by time (.05s)
Av Acceleration = .8m/s / .05s = 16m/s/s
Think thats right.....
also i dont THINK you can calcuate the acceleration for the whole 0.05 seconds because during that time it accelerates from rest... comes to rest... accelerates from rest and comes to rest again
hence my time i used was 0.025
5 ms is 0.05 seconds..
m = x 10^-3
Ok, so does that knock my calcs into a cocked hat?
Sorry....I'm taking acceleration between 2 points....when its at rest and at full speed....I can't be more granular than that
yeah so it starts at the back of the rammer housing, and 0.025 seconds later it is at the front with an average speed of 8.6m/sOk, so does that knock my calcs into a cocked hat?
Sorry....I'm taking acceleration between 2 points....when its at rest and at full speed....I can't be more granular than that
so a = v-u/t gives you the acceleration, i think?
next up, how much does a stock ego bolt weigh? roughly....
0.05 seconds is 50ms not 5ms.
But alot of that time is spend doing things other than moving forward.
Haha, theres nothing like being a couple of orders of magnitude out BEFORE you start calculating...
The acceleration of the bolt will be very high. Dont be too worried about that.
The amount of time the bolt spends moving is very very tiny.
Remember, the forward stroke time we are talking about here is the time between when you pull the trigger and it going bang, to us it happens in an instant.
Im just looking at the forward motion here.
You cant really derive the bolt speed from the rate of fire, because you do not know how much time is spent with the bolt retracted waiting for a ball to fall in, or forward propelling the paintball.
While on some guns this forward time is very small, its not instantaneous as in your model.
The bolt of course will not have constant acceleration, but it my mind its closer than constant speed(instant acceleration model seems kinda silly).
The moral of this post, is just trust me its 8ms, well it was on my old angel.
The acceleration of the bolt will be very high. Dont be too worried about that.
The amount of time the bolt spends moving is very very tiny.
Remember, the forward stroke time we are talking about here is the time between when you pull the trigger and it going bang, to us it happens in an instant.
Im just looking at the forward motion here.
You cant really derive the bolt speed from the rate of fire, because you do not know how much time is spent with the bolt retracted waiting for a ball to fall in, or forward propelling the paintball.
While on some guns this forward time is very small, its not instantaneous as in your model.
The bolt of course will not have constant acceleration, but it my mind its closer than constant speed(instant acceleration model seems kinda silly).
The moral of this post, is just trust me its 8ms, well it was on my old angel.
