anonymous
  • anonymous
Two straight roads intersect at an angle x=60deg. A car passes the intersection at a speed 90km/h. Ten minutes later a second car passes the intersection on another road. Half an hour after the first car has crossed the intersection the distance between the cars is 39km. what is the speed of the second car?
Mathematics
jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
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anonymous
  • anonymous
diagram would be something like that i think?
anonymous
  • anonymous
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anonymous
  • anonymous
Use cosine rule to find the speed
anonymous
  • anonymous
Thank you!! what fraction of a km is that?

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