anonymous
  • anonymous
a train runs between two stations stopping at each. Its velocity V km/min, t minutes after leaving the first station, is given by v = 0.12t(6-t)
Mathematics
chestercat
  • chestercat
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anonymous
  • anonymous
find the time taken to travel between the two stations
amistre64
  • amistre64
if something is stopped, its velocity is 0 right?
anonymous
  • anonymous
yes

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amistre64
  • amistre64
then for which ts does V = 0?
anonymous
  • anonymous
for t=0 and t=6 obviously...
amistre64
  • amistre64
obviously lol
cwrw238
  • cwrw238
so after first starting it stops again after 6 minutes
amistre64
  • amistre64
i was going to say 360 seconds, but 6 minutes sounds adequate
cwrw238
  • cwrw238
yup - lol
anonymous
  • anonymous
yup...the time difference between the two stations is 6mins...when the train travels at Vkm/min.
cwrw238
  • cwrw238
there you go
anonymous
  • anonymous
LOL @Akshat4-10 and @cwrw238 for impersonating me hahahas thanks guys ;)
anonymous
  • anonymous
so for this question how would we find ii- the maximum positive velocity attained iii- the distance between the two stations

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