# Answer on Mechanics | Relativity Question for rutvik

Question #58068

A track consists of two circular parts ABC and CDE of

equal radius 100 m and joined smoothly as shown in

figure (7-E1). Each part subtends a right angle at its

centre. A cycle weighing 100 kg together with the rider

travels at a constant speed of 18 km/h on the track.

(a) Find the normal contact force by the road on the

cycle when it is at B and at D. (b) Find the force of

friction exerted by the track on the tyres when the cycle

is at B, C and D. (c) Find the normal force between the

road and the cycle just before and just after the cycle

crosses C. (d) What should be the minimum friction

coefficient between the road and the tyre, which will ensure that the cyclist can move with constant speed ?Take g= 10 m/s^2

equal radius 100 m and joined smoothly as shown in

figure (7-E1). Each part subtends a right angle at its

centre. A cycle weighing 100 kg together with the rider

travels at a constant speed of 18 km/h on the track.

(a) Find the normal contact force by the road on the

cycle when it is at B and at D. (b) Find the force of

friction exerted by the track on the tyres when the cycle

is at B, C and D. (c) Find the normal force between the

road and the cycle just before and just after the cycle

crosses C. (d) What should be the minimum friction

coefficient between the road and the tyre, which will ensure that the cyclist can move with constant speed ?Take g= 10 m/s^2

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