Suppose you are driving your 1200 kg car around a curve of radius 54 m as shown.
The force keeping the car on the circular arc is 6960 Newtons.
If it starts to rain, reducing the coefficient of friction to μ = 0.25, what is now the fastest speed at which you can drive this road?

Question

Suppose you are driving your 1200 kg car around a curve of radius 54 m as shown.
The force keeping the car on the circular arc is 6960 Newtons.
If it starts to rain, reducing the coefficient of friction to μ = 0.25, what is now the fastest speed at which you can drive this road?

anonymous · Answer

attachment

mani_jha · Answer

What is the formula for centripetal force on a body?

anonymous · Answer

Set up the 2nd law for the radial componemt!

sinbearciante · Answer

F=ma; 
F(fric)=u(fric)N; 
a=v^2/r, for circular motion