HELP with question, I can't come up with the answer.

  • Thread starter bradycat
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In summary, two knights on horseback with different accelerations start from rest 88.0m apart and ride towards each other. The acceleration of Horse A is 0.300 m/s^2 and Horse B is 0.200 m/s^2. The question is where the horses will collide relative to Horse A's starting point. The relevant equations are d = 1/2at^2+vot and v = vo + at. If the riders start from 0, then vo=0. However, it appears that there may not be enough information to solve this problem.
  • #1
bradycat
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I have a problem and I can't solve it. Do I have enough info?

Two knights on horseback start from rest 88.0m apart and ride directly toward each other to do battle. Horse A accelleration has a magnitude of 0.300 m/s^2, while Horse B has a magnitude of 0.200 m/s^2.

Relative to Horse A's starting proint, where do the horses collide?

I am not sure what to do here.
Can you tell me what formula or formulas I need to use to figure this out. Just a work question and have no clue. Do I have enough info tho??


Please let me know ASAP, thanks for looking and helping if you do.
Joanne

This is what I came up with, but not sure, still can't get the answer. of 52.8m
 
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  • #2
This one appears to not have enough knowns to deal with, but look closer.

Your equations would be:

d = 1/2at^2+vot

v = vo + at

If the riders start at from 0, that gives you vo=0. Does that help?
 

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