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a book with a mass of 1 kg is dropped from a height of 3 m. what is the potential energy of the book when it reaches the floor?

Respuesta :

zainabdulrazzaq
Well, first of all, the formula for finding potential energy is;
PE=mgh
  Where; m is the mass
               g is the gravitational force or acceleration due to gravity
                h is the height. 
   Anyway, according to the question, the mass is 1kg, the acceleration due to gravity has a constant value of 10ms² . And the height is 3m. Now you just have to use all these in the formula. So;
mgh= 1 x 10 x 3. That will be 30. And the unit of potential energy is Joule. So the answer is 30 joules. Hope i helped. Have a nice day.     

The potential energy of the book when it reaches the ground has been 30 J.

Potential energy has been defined as the energy possessed by the body at rest. The potential energy (PE), of a body has been given by:

[tex]PE=mgh[/tex]

Where, the mass of the body has been m

The acceleration due to gravity has been a constant, [tex]g=10\;\rm ms^-^2[/tex]

The height of the body from the ground has been h

Computation for Potential energy

The given book has the mass, [tex]m=1\;\rm kg[/tex]

The height of the book from ground has been, [tex]h=3\;\rm m[/tex]

Substituting the values for Potential energy, (PE)

[tex]PE=1\;\rm kg\;\times\;10\;ms^-^2\;\times\;3\;m\\\textit {PE}=30\;J[/tex]

The potential energy of the book when it reaches the ground has been 30 J.

Learn more about potential energy, here:

https://brainly.com/question/21288807

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