If the loop track has a radius of 9.8 meters, approximately how fast must the car...

Question

Question

If the loop track has a radius of 9.8 meters, approximately how fast must the car be going at the top to stay on the track?

Group of answer choices

9.8 m/s

4.9 m/s

19.6 m/s

39.2 m/s

science physics

Answer 1

Answer #1

Minimum speed to stay in contact at the top, we have the normal force at the top equal to zero. 2 mo Eftop - Fn-mg = -mac -FN

So, the critical velocity of the car to stay on top of the track is 9.8m/s.

Answer 2

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