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Tangential speed

  • Thread starter Trotsky
  • Start date
  • #1
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Hello! Usually I have my friend help me with physics questions but he is away on vacation and I don't want to bother him. Anyways, the question is:

A young boy swings a yo-yo horizontally above his head so that the yo-yo has a centripetal acceleration of 289 m/s (squared).
If the yo-yo's string is .78 m long, what is the yo-yo's tangential speed? Answer in units of m/s.
 

Answers and Replies

  • #2
LeonhardEuler
Gold Member
859
1
Do you know the formula for centripetal acceleration? It is
[tex]a=\frac{v^2}{r}[/tex]
v is the tangential speed and r is the radius.
 

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