evelyn49477 evelyn49477

03-02-2021
Physics

contestada

A 3kg book falls from a 2m tall bookshelf what is the speed

PICTURE included

A 3kg book falls from a 2m tall bookshelf what is the speed PICTURE included class=

Respuesta :

03-02-2021

Answer:

39.2m/s

Explanation:

The potential energy the book has right before it falls is equal to the kinetic energy in falling.

PE = KE

mgh = (1/2)mv

2gh=v

v=(2)(9.81)(2)

v=39.24m/s

Answer Link

Otras preguntas

rapid population growth in developing countries will increase poverty because more people will be competing for precious resources . true or false?

If the exchange rate for Mexican pesos has changed from 10 pesos to 9 pesos per dollar, _____.

Marla borrowed $200 at a 12% simple interest for one year. If he makes no payments that year, how much interest will he she at the end of the year? a. $6.00 b.

What was the young plan?

The technological innovation that most influenced the English language was the A. invention of the computer. B. invention of the recording device.

How to do Simplification of algebraic fractions

Please answer the question from the attachment.

20 POINTSSS HELPPP!! Christa is comparing prices for the same brand and model of a security camera. Which store offers the lowest price? Store Table showi

What is a bright, star like object in the galaxy core

compare the ruler you made to an inch ruler.Describe a how they are alike and how they are different