Question

how many times will a 135 lb person need to climb a 2.2m flight of stairs to burn excess calories consumed?

Answer 1

Mass of person, m = 135 lb = 61.235 kg

Height of stairs, h = 2.2 m

Acceleration due to gravity, g = 9.8 m/s²

Hence, Energy consumed for climbing stairs once:

U = mgh

U = (61.235 kg) x (9.8 m/s²) x (2.2 m_

U = 1320.2266 J

We know that 1 kcal = 4184 J

Hence, Calories burned per climb :

U = (1320.2266 J) / (4184 J/kcal)

U = 0.31554 kcal

Hence, No.of climbs to burn excess calories is given by:

N = (excess calories) / (0.31554 kcal)

NOTE : You haven't provided the excess calories consumed. If you have the value, then please comment down below so that I can give you an exact number, or else you can follow the above step.