Question

What is the weight, on Earth, of a book with a mass of 1.5 kg?

Answer 1

 On Earth, 1 kg of mass weighs 9.807 Newtons, or 2.205 pounds (both rounded). The book with mass 1.5 kg weighs 14.7 Newtons, or 3.31 pounds.

Answer 2

Weight of book on Earth with mass of 1.5 kg is 14.7 Newton.

Solution:

Given:  

Mass of the book = 1.5 kg

Earth’s gravitational acceleration = $9.8 m/s^{2}$

To find:

The weight, on Earth, of a book with mass of 1.5 kg =?

Formula:  Weight = $Mass  \times Gravity$

Weight= $1.5 \mathrm{kg} \times 9.8 \mathrm{m} / \mathrm{s}^{2}$

Weight = 14.7 Newtons

The weight on Earth of a book with a mass of 1.5 kg is 14.7 Newton.