Calculating Velocity and Acceleration for Circular Motion

AI Thread Summary
To calculate the velocity of a body in circular motion, one must consider the initial horizontal velocity and the effects of centripetal acceleration as it moves along the circular path. The body, with a mass of 0.24 kg and an initial velocity of 5 m/s, will maintain this speed at point B unless acted upon by external forces. The centripetal acceleration can be determined using the formula a = v²/r, where v is the velocity and r is the radius of the circular path. The tension in the string provides the necessary centripetal force, which can be calculated using F = m*a. Understanding these principles is crucial for solving problems related to circular motion.
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.
 
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If you could provide us a picture, I'm sure we could work some things out. :D
 
heres the pic, sorry:P
 

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