Question

hey guys, i could really use some help with some vpython programming problems. it doesn't seem to tough, but I'm just not that very familiar with it.

Answer 1

The user @dan815 enjoys programming. But he's currently offline unfortunately. He would have helped you for sure.

Answer 2

awwww man :/

Answer 3

well, here;s the problem if you anyone else could provide help. it would be greatly appreciated.

Answer 4

I'm not knowledgeable in programming unfortunately. I would have helped if it was a theoretical problem.

Answer 5

it;s all good dude.

Answer 6

just make a loop and pause like 0.01 second for every frame

Answer 7

you can do something like this instead of going at it from a programming point where u just have some step size for your graping points

Answer 8

pseudo code
for t from 0:0.01:final time
or using while loops

t=0
while x>0 and x<L <---- boundary conditions
t=t+0.01
x=v*t
plot object at (x,y)
if u want x to have smooth increasing velocity, then use acceleration function
x=v*t+1/2a*t^2 <--- u can lose the initial v condition
plot object at (x,y)
pause 0.01 secs
end

Answer 9

this will take care of your first motion if u start plotting from x=0
it will go till x=>L and stop

Answer 10

to reverse you take t = final t : -0.01 : 0

Answer 11

this is the more mathematical approach

Answer 12

another way which is simpler to code
pseudo code
if x>=L
velocity=negative int
elif x<=0
velocity = positive int
while x>0 and x<L
x=x+velocity
plot object @ (x,y)
end

Answer 13

if u want velocity to be increasing constant then

Answer 14

velocity=velocity*k %if u want a linear rise in velocity

Answer 15

pseudo code for linear velocity increase
if x>=L
velocity=negative int
elif x<=0
velocity = positive int
while x>0 and x<L
velocity=velocity*k %where k is some constant for the rate of linear increase in velocity
x=x+velocity
plot object @ (x,y)
end

Answer 16

okay I hope that gives you some ideas, to do yor assignment, there are many other ways, don't forget to include pause steps so the plots show

Answer 17

and look u those draw commands for objects for vpython