# Example 11.2

Last updated at June 8, 2019 by Teachoo

Last updated at June 8, 2019 by Teachoo

Transcript

Example 11.2 A porter lifts a luggage of 15 kg from the ground and puts it on his head 1.5 m above the ground. Calculate the work done by him on the luggage. Mass of luggage = 15 kg Height of luggage = h = 1.5 m Work done = Force × Distance Force = Weight of luggage = m × g ∴ Work done = m × g × h = 15 × 10 × 1.5 = 15 × 10 × 15/10 = 15 × 15 = 225 J Work done is 225 J

Class 9

Chapter 11 Class 9 - Work and Energy

About the Author

Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.