At what speed the car must pass the middle of the convex bridge R = 40 meters so that the centripetal
| December 21, 2020 | education
At what speed the car must pass the middle of the convex bridge R = 40 meters so that the centripetal acceleration equals the acceleration of gravity.
Given:
Centripetal acceleration = 10 m / s ^ 2, because it is equal to the acceleration of gravity.
R = 40
Decision:
a = v ^ 2 / R
10 = v ^ 2/40
V ^ 2 = 40 × 10
V ^ 2 = 400
V = 20
Answer: 20 m / s
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