Question

Yeah man of mass 70 kg is climbing a building of 100 steps each of 20 cm height find the work done

Answer 1

Answer:

14,000J

Explanation:

if one step = 20cm = 0.2m

Then 100 steps so...

100 × 0.2 = 20m

20m is the total height

W = mgh

m = 70kg

g = 10m/s^2

h = 20m

then W = 70 × 20 × 10 = 14,000 J

the work done is 14,000 joules