sarahgilbert8709 sarahgilbert8709

03-07-2019
Physics

contestada

What is the maximum speed at which a car could safely negotiate a curve on a highway, if the radious of the curve is 250 m and the coefficient of friction is 0.4? Give the answer in meter/sec.

Respuesta :

Vespertilio Vespertilio

07-07-2019

Answer:

31.3 m/s

Explanation:

The relation between the coefficient of friction and the velocity, radius of curve path is given by

μ = v^2 / r g

v^2 = μ r g

v^2 = 0.4 x 250 x 9.8 = 980

v = 31.3 m/s

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