Register
A backpack has a mass of 8 kg. It is lifted and given 54.9 J of gravitational potential energy. How high is it lifted?
201k views
2 votes
A backpack has a mass of 8 kg. It is lifted and given 54.9 J of gravitational potential energy. How high is it lifted?

A backpack has a mass of 8 kg. It is lifted and given 54.9 J of gravitational potential-example-1
User Hmmm
by
6.9k points

1 Answer

3 votes
m=4kg
Eg=54,9J
g≈9,8m/s²

h=?

Eg=m*g*h
h=Eg/(m*g)=54,9J/(8kg*10m/s²)≈0,7m

answer: A




"Non nobis Domine, non nobis, sed Nomine tuo da gloriam."



Regards M.Y.

User Peter Elespuru
by
6.4k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

7.8m questions

10.4m answers

Other Questions

Physical properties of minerals graphic organizer
A snowball is launched horizontally from the top of a building at v = 16.9 m/s. If it lands d = 44 meters from the bottom, how high (in m) was the building?
What type of rock is the Haystack rock (igneous, Metamorphic, or Sedimentary)
what is a device that transforms thermal energy to mechanical energy
How many light sources do you know Pls list them
Link Copied!