Help Relative Velocity

  • Thread starter kidgt23
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  • #1
kidgt23
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Homework Statement


A person on a train watches a car approaching a railway crossing ahead on his track. It appears that the car’s driver has fallen asleep and will not slow down. The train is traveling north‐east at 100km/h while the car is going west at 80km/h. The train is 4 km and the car is 3km from the crossing. I) What is the velocity of the car relative to the train. Pick the train travel direction (North‐ East) as the +x direction and the perpendicular direction (North‐west) as the +y direction II) Where will the train be when the car gets to the crossing, will they collide? III) Find the acceleration of the car required to cause a collision. IV) In the reference frame of the train rider, what is the acceleration.

Homework Equations




The Attempt at a Solution

 

Answers and Replies

  • #2
BvU
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Hi kid, :welcome:

Is there a question here ? PF has a specific culture (read the guidelines) asking something from you ...
 
  • #3
kidgt23
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could u solve it
 
  • #4
PeroK
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could u solve it
In order to get help you need to show your best attempt to solve the problem and explain where you get stuck. We can just do the problem for you.
 

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