Register to reply

Uniform Circular Motion A Jet Pilot

Share this thread:
Brenwells
#1
Oct6-13, 02:07 PM
P: 1
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
Phys.Org News Partner Physics news on Phys.org
Mapping the optimal route between two quantum states
Spin-based electronics: New material successfully tested
Verifying the future of quantum computing
SteamKing
#2
Oct6-13, 02:51 PM
Emeritus
Sci Advisor
HW Helper
Thanks
PF Gold
P: 6,333
Velocity has units of m/s

Acceleration has units of m/s^2


Register to reply

Related Discussions
Max. speed you can drive on a circular hill an still be in Uniform Circular Motion Introductory Physics Homework 2
What is linear acceleration in uniform circular motion? Introductory Physics Homework 1
Non-Uniform Circular Motion problem Introductory Physics Homework 9
Airplane Pilot, dealing with Uniform Circular Motion Introductory Physics Homework 2
Proper description of uniform circular motion Introductory Physics Homework 3