Calculating Velocity and Acceleration for Circular Motion

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milan666
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Homework Statement


The picture shows a body of mass 0.24kg attached to a fixed point P by a light string of length 0.80m. When the body is at A, vertically below P, it is given an horizontal velocity of 5m/s as shown. It the flollows a circular path to the position B. When it is at B, calculate:
i) the velocity of the body
ii) the centripetal acceleration of the body
iii)the force exerted by the string on the body

Homework Equations


The chapter is "circular motion"



The Attempt at a Solution


I only need part i), i can manage the rest myself.
 
If you could provide us a picture, I'm sure we could work some things out. :D
 
heres the pic, sorry:P
 
Attachments
  • Hand-drawn diagram of a ball on a string pivoted at point P below a horizontal bar, with a 0.8 m vertical length marked. Ball A hangs below P and moves right at 5 m/s, and a dashed arc rises to point B at the bar's right end.
    physics.jpg
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