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Introductory Centripetal Force Problem - Car over a Hill

Flipping Physics
By Flipping Physics, 09/10/2017
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A 453 g toy car moving at 1.05 m/s is going over a semi-circular hill with a radius of 1.8 m. When the car is at the top of the hill, what is the magnitude of the force from the ground on the car?

Want Lecture Notes? This is an AP Physics 1 topic.

Content Times:
0:08 Translating the problem
1:49 Drawing the free body diagram
2:43 We need to sum the forces in the in-direction
3:22 The “in-direction” is positive. The “out-direction” is negative
4:06 Identifying the centripetal force in this problem
4:54 Solving the problem … finally.
6:15 Kit compares the magnitudes of the force normal and force of gravity

Thank you to Kit from Gorilla Physics for your help with this video!!

Next Video: What is the Maximum Speed of a Car at the Top of a Hill?

Multilingual? Please help translate Flipping Physics videos!

Previous Video: Centripetal Force Introduction and Demonstration

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Thank you to Scott Carter and Christopher Becke for being my Quality Control Team for this video.

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