Question

A 2.26 kg book dropped from a height of 1.5 m.
What is its acceleration?
What is its weight in newtons?

Answer 1

For the first question, assuming that it is dropped on Earth, the acceleration of the book will be the acceleration due to gravity (g = 9.8 m/s^2).

It's weight is given by Newton's 2nd Law:
F = ma
m: mass of object
a: equal to 'g' on Earth
The force 'F' is the weight of the object. Weight is another way of saying "force due to gravity"

Answer 2

so, is it 22.15N ?