commanderbeast945
commanderbeast945 commanderbeast945
  • 02-10-2019
  • Physics
contestada

when a book falls from a shelf to the ground without anyone pushing on it, no work is done to the book. True or False

Respuesta :

AL2006
AL2006 AL2006
  • 02-10-2019

That's false.

-- The force on the book is its weight.

-- The force acts through the distance the book falls.

-- The work done on the book is

(weight) x (length of the fall)

-- Gravity DOES the work.

Answer Link

Otras preguntas

What is the argument presented in the text
Plot the points (3,-1), (3,2), (3,4) and draw the line that phases through them.
what statement about yup'ik finger masks is true? A(men wore finger mask during dance cerimonies.
P=x/y x=11 y=12. Give answer as a fraction in its simplest form.No explanation needed. Please :) ​
A student scored 88%, 92%, and 84%? If he wants to average at least 90% what will his 4th test need to be? Please help me on this?
What is the meaning of consul
What is the volume of the prism ?
Which work is a work of artistic imagination instead of representation and a composite form? A.NakedWomen venus of willendrof. B Women holding bison. C Bison l
Please help me with 25
BTS QUESTION.Aye mates!So I have a question for BTS Army members:What are the sexualities of each member? It's a question I've always wanted the answer to so I