00:01
The mass of the book is given as 3 .5 kilograms.
00:08
It starts from the rest.
00:10
So its initial speed will be 0 meter per second.
00:14
And it covers a distance of 0 .9 meters with a horizontal force given by the broom.
00:23
So we have the horizontal force which is fx as 25 newtons.
00:30
And the speed of the book is given as 1 .6 meter per second.
00:35
Now we can use the key nematic equation which is given by v square, v square equals u square plus 2 as to calculate the acceleration of the book.
00:50
So rewrite this expression we get a equals v square minus u square by 2 s.
00:59
Substitute all the given values.
01:01
We have v as 1 .6 meter per second square minus 0 .0.
01:07
Divided by 2 into 0 .9 meters.
01:11
This is equals to 1 .422 meter per second square.
01:16
So this is the acceleration of the book...