Solve the following!!!

Solution

Radius of circular path : r = \frac{D}{2} = \frac{105}{2} = 52.5 m Circumeference of circular path : C = 2 πr = 2 π \times 52.5 = 329.9 m In 5 \min, cyclist covered 1 round . So in 7 \min 30 s it covere 1.5 round . Distance travelled in 7 \min 30 s : d_{1} = 1.5 o f c i r c u m f e r e n c e = 1.5 \times 329.9 = 494.8 m After 1.5 round cyclist with 1 diameter away from initial position Displacement in 7 \min 30 s : d_{2} = Diameter = 105 m Speed : v_{1} = \frac{d_{1}}{t} = \frac{494.8}{7.5} = 65.9 m / s Velocity : v_{2} = \frac{d_{2}}{t} = \frac{105}{7.5} = 14 m / s