Find the maximum speed at which a car can turn round a curve of 30 m radius on a level road, if the coefficient of friction between the tyres and the road is 0.4.

A bend in a level road has a radius of 100 m.Find the maximum speed with which a car turning thi bend may have without skidding,if the co-efficient of friction between the tyres and the road is 0.2.

A bend in a level road has radius of 100 m.Find the maximum speed with which a car turning this bend may have without skidding ,if the coefficient of friction between the tyres and road is 0.8.

A cyclist speeding at 18 km h^-1 on a level road makes a sharp circular turn of radius 3 m without reducing the speed. The coefficient of static friction between the tyres and the road is 0.1 will the cyclist slip while taking the turn?

Calculate the maximum speed with which a vehicle can travel on a level circular road without skidding.

A disc revolves with a spped of 33 (1/3) rev// min , and has a radius of 15 cm. Two coins are placed at 4 cm and 14 cm away from the centre the record. If the co-effcient of friction between the coins and the record is 0.15, which of the coins will revolve with the record?

An automobile is moving on a horizontal road with a speed of v.If teh coeficient of friction between the tyres nd the road is mu ,show that the shortest distance in whih the automobie can be stopped is v^2l2mug .

Figure 5.18 shows a man standing stationary with respect to a horizontal conveyor belt that is accelerating with 1 m s^-2 . What is the net force on the man? If the coefficient of static friction between the man’s shoes and the belt is 0.2, up to what acceleration of the belt can the man continue to be stationary relative to the belt ? (Mass of the man = 65 kg.)