49,956 views
12 votes
12 votes
HELP PLZZZZZZ

A 30 g spoon is lifted above a table and has 0.062 J of potential energy. How high is it?

User Richard Schwartz
by
3.0k points

1 Answer

26 votes
26 votes

Hi there!

We know that:

U (Potential energy) = mgh

We are given the potential energy, so we can rearrange to solve for h (height):

U/mg = h

g = 9.81 m/s²

m = 30 g ⇒ 0.03 kg

0.062/(0.03 · 9.81) = 0.211 m

User Holden
by
2.8k points