On a windless day a cyclist goes an incline uphill at a constant speed of 12 km/hr and downhill on same incline at 16 km/hr. Air resistance is proportional to square of his speed and his maximal effort which he applies on pedal which causes friction on tyre to move the cycle is independent of speed. His maximum speed on his maximal effort on a flat road is close to :- (A) 20 km/hr (C) 22 km/hr (B) 18 km/hr (D) 14 km/hr

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On a windless day a cyclist goes an incline uphill at a constant speed
of 12 km/hr and downhill on same incline at 16 km/hr. Air resistance is
proportional to square of his speed and his maximal effort which he
applies on pedal which causes friction on tyre to move the cycle is
independent of speed. His maximum speed on his maximal effort on a
flat road is close to :-
(A) 20 km/hr
(C) 22 km/hr
(B) 18 km/hr
(D) 14 km/hr
Transcribed Image Text:On a windless day a cyclist goes an incline uphill at a constant speed of 12 km/hr and downhill on same incline at 16 km/hr. Air resistance is proportional to square of his speed and his maximal effort which he applies on pedal which causes friction on tyre to move the cycle is independent of speed. His maximum speed on his maximal effort on a flat road is close to :- (A) 20 km/hr (C) 22 km/hr (B) 18 km/hr (D) 14 km/hr
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