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A car traveling 20 m/s enters into a unbanked curve with a radius of 25m.

If the coefficient of friction between the tires and the road is 0.75, what is the magnitude of the change in velocity of the car if the car is going to stay in its lane?

A

$\Delta v=3.20 m/s$

B

$\Delta v=6.40 m/s$

C

$\Delta v=12.8 m/s$

D

$\Delta v=13.6 m/s$

E

$\Delta v=26.4 m/s$

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