# Answer on Mechanics | Relativity Question for Gabi

Question #1468

What is the maximum speed with which a 1050 kg car can round a turn of the radius 70 m on a flat road if the coefficient of friction between tires and road is 0.80?

Expert's answer

The acceleration due to change in the direction is:

& a = V2/R

Let's write the equation of the force equilibrium

micro; m g = m a

micro; g =& V2/R

V 2= R µ g = 70*0.8 * 10 = 560

The maximum speed would be equal to 23.66 m/s.

& a = V2/R

Let's write the equation of the force equilibrium

micro; m g = m a

micro; g =& V2/R

V 2= R µ g = 70*0.8 * 10 = 560

The maximum speed would be equal to 23.66 m/s.

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## Comments

Glen Timi24.10.2014 21:48Thankyou very much, a single mark is my life but through this I am sure that I already get what I want. This question wort 3 marks and I know I already got 3 on this particular question, thank you very much for your help, cheers.....

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