Question

Question 1 (10 marks) A 75 kg cyclist is riding a 9 kg road bike on flat ground at a constant Velocity of 8 m/s. The cyclist is using a power meter, which indicates that the cyclist's power output is 216 W. a) draw the FBD & KD for the cyclist (2 marks) b) use your FBD/KD to solve for the drag force that is acting on the cyclist for the conditions above (2 mark if the cyclist now wants to accelerate at 1 m/s2 starting from the s) c) conditions above, what magnitude of horizontal driving force would he/she need to achieve between the rear tire and the road? What power is needed for this? (3 marks) d) if the cyclist entered a curve in the road while still travelling 8 m/s, with a radius of curvature of p 20 m, what lateral force would need to act between the road and the tires of the bike? (3 marks) [Hint: you will need to switch coordinate systems and draw a new FBD & KD

Answer 1

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