numerical-problem-5-work-power-and-energy-physics-11 June 1, 2020 A man whose mass is 70 kg walks up to the third floor of a building which is 12 m above the ground in 20 s. Find power in wall and horsepower. 1 Comment Problem 5: A man whose mass is 70 kg walks up to the third floor of a building which is 12 m above the ground…