The same bend at 30 km/h and at 60 km/h gives four times as much centrifugal force at 60 km/h, not twice.
False
True
Correct answer
True
Explanation
trap: quadratic relationship simplified to linear. Book p.68 - the same bend at 30 km/h and at 60 km/h gives four times as much centrifugal force at 60 km/h, not twice