what is the GPE of a 100. g matter falling from the height of 1.75 m

The Gravitational Potential Energy can be calculated using:   GPE  =  m · g · h        where

GPE will be joules  if     m = mass (in kilograms)  

                                  g = gravitational constant (9.8 m/sec²)

                            and h  = height in meters.

The mass is 100 g = 0.1 kg and h = 1.75m:    GPE  =  m · g · h  =  (0.1kg) · (9.8m/sec²) · (1.75m)

If you finish the calculation, you will have the answer.

Here is a solution with humor. Lancelots Links unexplained maths solution is overkill for this question, but is correct.

 

http://web2.0calc.com/questions/how-do-you-find-local-gravitational-potential#r2