Answer:
[tex]\boxed {\boxed {\sf 29.4 \ Joules }}[/tex]
Explanation:
Gravitational potential energy can be found using the following formula.
[tex]PE_g= m*g*h[/tex]
When m is the mass, g is the gravitational acceleration, and h is the height.
The book has a mass of 2 kilograms. It's height is 1.5 meters above the ground. Assuming this is on Earth, the gravitational acceleration is 9.8 m/s².
[tex]m= 2 \ kg \\h= 1.5 \ m \\g= 9.8 \ m/s^2[/tex]
Substitute the values into the formula.
[tex]PE_g=2 \ kg * 1.5 \ m * 9.8 \ m/s^2[/tex]
Multiply the first two numbers together.
[tex]PE_g=(3.0 \ kg*m)( 9.8 \ m/s^2)[/tex]
Multiply again.
[tex]PE_g=29.4 \ kg*m^2/s^2[/tex]
[tex]PE_g= 29.4 \ J[/tex]
The gravitational potential energy of the book is 29.4 Joules.
