Frictional Force on a Banked Turn
A car travels on a circular track with a radius of 80 m that is banked at an angle of 25°. The car moves at the ideal speed for which no friction is required. If the car’s speed is reduced by 10%, what is the direction of the frictional force exerted on the car by the track?
A
No friction is still required
B
Friction must act down the bank
C
The car will skid regardless of friction
D
Friction must act up the bank
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