Can somebody help me out with physics? please show the work step by step

Physics
Tutor: None Selected Time limit: 1 Day

A car moving at 10.0 m/s encounters a bump that has a circular cross-section with a radius of 30.0 m. What is the normal force exerted by the seat of the car on a 60.0-kg passenger when the car is at the top of the bump?

Jun 7th, 2015

Thank you for the opportunity to help you with your question!

mass = 60 kg
speed = 10 m/s
force by the seat = Fseat

mv^2/R = N - mg
N = m(g + v^2/R) = (60)(9.8 + (10)^2/30) = 788

N = 788

Please let me know if you need any clarification. I'm always happy to answer your questions.
Jun 7th, 2015

That answer is wrong supposedly the answer should be  389 N :/

Jun 7th, 2015

That answer is wrong supposedly the answer should be  389 N :/

Jun 7th, 2015

calculations that's where i did wrong but the formular is ok

Jun 8th, 2015

I still dont get it can you please show me step by step how i can get 389N? :/

Jun 8th, 2015

ok

Jun 8th, 2015

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