What is the gravitational potential energy of a ball with a weight of 72 N when it is sitting on a shelf 1.4 m above the floor?

Question

mizzymtherrybear mizzymtherrybear

02-11-2016
Physics

contestada

What is the gravitational potential energy of a ball with a weight of 72 N when it is sitting on a shelf 1.4 m above the floor?

Respuesta :

Otras preguntas

write words to match the expression. 24- ( 6+3)

what other areas beside egypt did the new kingdom pharoahs conquer

Which two numbers have a difference of 5 and a product of 3.36???

If you are writing a persuasive essay in favor of banning vending machines in schools, which is a counterargument you might anticipate?

what other areas beside egypt did the new kingdom pharoahs conquer

If you are writing a persuasive essay in favor of banning vending machines in schools, which is a counterargument you might anticipate?

what other areas beside egypt did the new kingdom pharoahs conquer

If you are writing a persuasive essay in favor of banning vending machines in schools, which is a counterargument you might anticipate?

LittleRedMe LittleRedMe · Answer 1 · 2016-11-02T14:15:30+01:00

LittleRedMe LittleRedMe

02-11-2016

First you must convert the weight to mass. So:

W = mg (assuming that gravity is 9.8 Nkg-1)

m = W/g
= 72 / 9.8
= 7.3kg

Then we can use Ep = mgh

= 7.3*9.8*1.4

= 100.1N

Answer Link