A car rounds an unbanked curve of radius 65 m. If the coefficient of static friction between the road and car is 0.70, what is t
1 answer:
Answer:
v = 21.127 m/s
Explanation:
Let's start off with the equation for centrifugal force:
This force has to be equal to the force of friction which is:
(where u = coefficient of friction and R = mass * gravity )
Assumption: The car is travelling on horizontal ground
We can set the above equations equal to one another to get:
(m*v^2)/r = u * (m * 9.81)
here u = 0.7
r = 65
and mass cancels out on each side
Solving for v, we get:
v = 21.127 m/s
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