In: Physics
A curve of radius 30 m is banked so that a 950 kg car travelling
at
40 km/h can go round it even if the road is so icy that the
coefficient of static friction is approximately zero. You are
commissioned to tell the local police the range of speeds at which
a car can travel around this curve without skidding. Neglect the
effects of air drag and rolling friction. If the coefficient of
static friction is 0.3, what is the range of speeds you tell
them?