To calculate centripetal acceleration when you only have the initial velocity in circular motion, you would need additional information such as the radius of the circular path or the time taken for one complete revolution. Without this information, it is not possible to determine the centripetal acceleration.
However, if you have the radius of the circular path, you can calculate the centripetal acceleration using the following formula:
Centripetal acceleration (a) = (v^2) / r
Where:
- v is the magnitude of the velocity (initial velocity in this case) of the object in circular motion.
- r is the radius of the circular path.
Please note that this formula assumes the circular motion is uniform, meaning the speed remains constant throughout the motion. If the speed is changing, or if the motion is not strictly circular, the calculation becomes more complex, requiring additional information.