Respuestas

2011-12-06T16:22:35+01:00

m = 200 kg

h = 20 m

g = 10 m/s2

 

W = ?

 

W = mgh = 200kg x 10m/s2 x 20m = 40 000 kg*m2/s2 = 40 000 J

W = 40 kJ