Question

A porter lifts a luggage of 15 kg from the ground and puts it on his head 1.5m above the ground. Calculate the work done by him on the luggage.

Force=140N
s=15m
w=?
w=f×s
=140N×15m=2100Nm
W=2100 J
Work is ploughing the length of the field is 2100J​

Answer 1

Answer:

The work done by porter on the luggage​ is 225 J

Explanation:

Given,

A porter lifts a luggage of mass = 15 kg from the ground.

It's on his head 1.5 m above the ground.

To find: The work done by him on the luggage​

Solution:

here, Force is due to the weight of the luggage.

i.e F = mg , where m = mass of luggage and g = accerleration due to gravity

or, F = 15 * 10 = 150 N

Work done can be given as:

W = F * s

where, F = force and s = displacement i.e 1.5 m

W = 150 * 1.5 = 225 J

Therefore, The work done by porter on the luggage​ is 225 J.

Answer 2

Answer:The work done by porter on the luggage​ is 225 J

Explanation:Given,A porter lifts a luggage of mass = 15 kg from the ground.It's on his head 1.5 m above the ground.To find: The work done by him on the luggage​Solution:here, Force is due to the weight of the luggage.i.e F = mg , where m = mass of luggage and g = accerleration due to gravityor, F = 15 * 10 = 150 NWork done can be given as:W = F * swhere, F = force and s = displacement i.e 1.5 mW = 150 * 1.5 = 225 JTherefore, The work done by porter on the luggage​ is 225 J.