Uniform Circular Motion A Jet Pilot

AI Thread Summary
A jet pilot is analyzing the minimum radius of a vertical loop for his aircraft, ensuring that the centripetal acceleration does not exceed 6.0 g's while flying at a speed of 840 km/h. The pilot converts the speed to 233.33 m/s and calculates the maximum allowable acceleration as 58.8 m/s^2. Using the formula for centripetal acceleration, a = v^2/r, the pilot derives two potential radii: 925.90 m and 14.82 m. The first calculation of 925.90 m is confirmed as correct, while the second is deemed incorrect due to a misunderstanding of the variables. The discussion emphasizes the importance of correctly identifying velocity and acceleration units in physics problems.
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Uniform Circular Motion "A Jet Pilot"

Hi, my apologies if this has been posted before. I was just wondering if someone could help look over this question for me and confirm if I did it correct or not. It is a written homework rather than online so I can't check my answer to see if I did it correctly.

A jet pilot takes his aircraft in a vertical loop. (a) If the jet is moving at a speed of 840km/h at the lowest point of the loop, determine the minimum radius of the circle so that the centripetal acceleration at the lowest point does not exceed 6.0 g's.

840km/h = 233.33 m/s
6g = (6*9.80) = 58.8m/s^2

Equation used a=(v^2)/r

but I continue to get confused between which is velocity and acceleration.

Would I have

r=(233.33^2)/58.8
r=925.90m

or

r=(58.8^2)/233.33
r=14.82m

which the first answer of 925.90m sounds a lot more correct than 14.82 but I just wanted to make sure. If someone could please confirm that would be great.

Thank you
 
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