A man of mass 80 kg lifts up a work of 20 kg through 10 stairs each of height 0.5 m Find the work done.

Open in App

Solution

$\begin{matrix} x = 0.5 \times 10 = 5 m f = (m + M) g = 100 g w = f . x = 5 k g \end{matrix}$

Suggest Corrections

Similar questions

A man lifts a mass of 20 kg to a height of 2.5m Assuming that the force of gravity on 1 kg mass is 10N, find the work done by the man.

Q. Mass of stone=10 kg
relative density=4
Find the work done in lifting the stone through a height of 20m inside the lake

Q. A man weighing 50 kg lifts a weight of 30 kg to the top of building 10 m high. Find the work done by him. Take

g = 9.8 m / s^{2}

Q. A 50

k g

man with 20

k g

load on his head climbs up 20 steps of 0.25

m

height each. The work done by the man on the block during climbing is

A man lifts a mass of 20 kg to a height of 2.5 m. Assuming that the force of gravity on 1 kg mass is 10 N, Find the work done by the man. $(t a k e g = 10 m s^{- 2})$

Join BYJU'S Learning Program

A man of mass 80 kg lifts up a work of 20 kg through 10 stairs each of height 0.5 m Find the work done.

x=0.5×10=5mf=(m+M)g=100gw=f.x=5kg

$\begin{matrix} x = 0.5 \times 10 = 5 m f = (m + M) g = 100 g w = f . x = 5 k g \end{matrix}$