What is the speed of a car passing a curvature of the road with a radius of 200 meters if it is affected by a centripetal acceleration of 4.5?
| November 28, 2020 | education
ac = 4.5 m / s2
r = 200 m
Formula of centripetal acceleration – ac = u ^ 2 / r
from this formula we express the square of the speed u ^ 2 = ac * r, therefore the speed is u = √ (ac * r)
Calculate: u = √4.5 * 200 = √900 = 30 m / s
Answer: u = 30 m / s.
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