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Gravitational Potential Energy of a tower

E=mgh

how to find the gravitational potential energy if the mass is not given
only height is given

E.G
A man decides to cimb an office tower. If the floors are 3.8 m apart, how much gravitational potential energy would the man have relative to the ground floor if he made it to 5th floor??
 

Answers and Replies

how to find the gravitational potential energy if the mass is not given
only height is given

E.G
A man decides to cimb an office tower. If the floors are 3.8 m apart, how much gravitational potential energy would the man have relative to the ground floor if he made it to 5th floor??
 
Mentz114
Gold Member
5,424
290
You only need to find the ratio of the PE on the ground and five floors up. The mass cancels out.
 
Last edited by a moderator:
dude i need da answer too :(
In da book the answer is wrong
 
Mentz114
Gold Member
5,424
290
What answer is that ?

Use the formula you give in your first title, and calculate E for d and d+(extra height).
 
Last edited:
41 Joule
 
Mentz114
Gold Member
5,424
290
That's not a ratio, so my reading of the question is wrong. Sorry, can't help you.
 

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