+0  
 
0
261
2
avatar

50 L of water falls 10.0 m into the bucket of a water wheel. How much energy is imparted to the wheel?

Guest Feb 28, 2015

Best Answer 

 #1
avatar+26718 
+10

1 L of water has a mass of 1 kg, so the potential energy of 50 L of water 10 metres above the bucket is:

 

50*1*9.8*10 Joules = 4900 Joules

 

This is turned into the same amount of kinetic energy as it hits the bucket.

.

Alan  Feb 28, 2015
 #1
avatar+26718 
+10
Best Answer

1 L of water has a mass of 1 kg, so the potential energy of 50 L of water 10 metres above the bucket is:

 

50*1*9.8*10 Joules = 4900 Joules

 

This is turned into the same amount of kinetic energy as it hits the bucket.

.

Alan  Feb 28, 2015
 #2
avatar+92623 
+5

 

Thanks Alan,  I am learning/revising too.    

 

Potential energy = mass* gravity * height

 

[mass   kg]        [ gravity   m/s^2]           [ height  m]        Energy is measured in Joules

Melody  Mar 1, 2015

19 Online Users

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.