An automobile moving with a speed of `10m//s` enters an unbanked curve of radius `r=50m`.If `g=10m//s`, the maximum valve of `mu` so as to safety negotiate the curve is `1//x`.Then `x=`

A car of mass 1000 kg is negotiating an unbanked curve of radius 20 m. If the coefficient of friction is 0.5 and g = 10 m//s^(2) the maximum safe speed of the car is

The maximum safe speed of a vehicle over a curved road of radius 150 m is 10 m//s . If the width of road is 7.5 m, the height of the outer edge will be

An observer is moving with a constant speed of 20m/s on a circular track of radius 50m. A source kept at centre of track emits a sound of frequency 200 Hz. Then the frequency received by the observer is x xx10^2 Hz, what is value of x. (V= 340m/s)

If an automobile moves round a curve of radius 300 m at constant speed of 60 m//s , then the change of velocity round a curve of 60^(@) will be

A motorcyclist of mass m is to negotiate a curve of radius r with a speed v . The minimum value of the coefficient of friction so that this negotiation may take place safely, is

An unbanked curve has a radius of 60m. The maximum speed at which a car can make a turn if the coefficient of static friction is 0.75 , is

At what maximum speed a racing car can travel through unbanked curve of radius 50m?The coefficient of friction between tyres of car and road surface is 0.5

An aircraft executes a horizontal loop with a speed of 150 m/s with its, wings banked at an angle of 12^(@) . The radius of the loop is (g=10m//s^(2))