The record time for a Tour de France cyclist to ascend the famed 1100-m-high Alpe d'Huez was 37.5 min, set by Marco Pantani in 1997. Pantani and his bike had a mass of 65 kg. Assume the body works with 25 % efficiency.

A) How many Calories did he expend during this climb?

B) What was his average metabolic power during the climb?

Question

Physics

Saige Mack

9 December, 16:09

The record time for a Tour de France cyclist to ascend the famed 1100-m-high Alpe d'Huez was 37.5 min, set by Marco Pantani in 1997. Pantani and his bike had a mass of 65 kg. Assume the body works with 25 % efficiency.

A) How many Calories did he expend during this climb?

B) What was his average metabolic power during the climb?

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Answers (1)

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Payton Lutz · Answer 1

Marco Pantani set the ‘record’ when he averaged 6.63 W/kg during the 1997 Tour. So the amount of calorie marco pantani expended can be calculated by multiplying it by its mass and dividing by its efficiency

Calorie = (6.63 W / kg) * (65 kg) * (1 cal/s / 4.19 W) * (37.5 min) * (60 s / 1 min) / 0.25

Calorie = 925, 668 cal