Register to reply

Energy created by falling object

by Greg E
Tags: energy, falling, object
Share this thread:
Greg E
#1
Dec20-05, 08:31 AM
P: 1
If there is a 1.36 kg weight falling .1524 meters,
how many joules are created when the object reachs the end of the .1524 meters. How do you calculate this?
I came up with 2.032 joules which is .20723 kg meters which I think is enough power to lift 1.36 kg .1524 meters which is the same as where I started and that cannot be correct because a falling object has more power than the same object standing still.
Thanks,
Greg
Phys.Org News Partner Science news on Phys.org
Sapphire talk enlivens guesswork over iPhone 6
Geneticists offer clues to better rice, tomato crops
UConn makes 3-D copies of antique instrument parts
Astronuc
#2
Dec20-05, 09:01 AM
Admin
Astronuc's Avatar
P: 21,827
This seems like a homework problem from Introductory Physics.

However, an object falling implies falling due to gravity. What one has is a conversion/transformation from gravitational potential energy to kinetic energy.

Taking the acceleration of gravity to be constant, the change in gravitational potential energy is mg[itex]\Delta h[/itex], where [itex]\Delta h[/itex] is the change in elevation.


Register to reply

Related Discussions
Graph of Kinetic Energy v. Displacement of a Falling Object Introductory Physics Homework 2
Falling object Introductory Physics Homework 4
Energy created by a falling object Introductory Physics Homework 6
Falling Object Introductory Physics Homework 5