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Acceleration Vectors! Help!

  • Thread starter GodOfYou
  • Start date
  • #1
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Homework Statement



A Soccer player is running down the field with a ball at a speed of 4.0 m/s. He cuts to the right at an angle of 30.0o to his original direction to receive a pass. If it takes him 3.0s to change is direction, what is his average acceleration during the turn?

Homework Equations



a = v / t

a2+b2=c2

Sin, Cos, Tan ex. Cos 45o = delta d1 / delta d2


The Attempt at a Solution



I have drawn the triangle In attachment.
The dotted lines are me making the triangle.

Then I broke the top triangle into a right angle triangle (in second attachment)

and now I am stuck.. I have never worked with angles in this type of problem and I need help.

Thanks,
Jason
 

Attachments

Answers and Replies

  • #2
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Break both his old and new velocity into components.
 
  • #3
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so when he turns to the right he will still be moving at 4.0 m/s?
 
  • #4
Redbelly98
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Science Advisor
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Yes, it looks like we are supposed to assume the speed is still 4.0 m/s after the turn.
 

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