Respuestas

2013-02-21T18:23:29+01:00

Ep = m^g^h;   490000 = m^9,8^250 ;  49000 = 2450m ; m = 200 Kg

Ec = 1/2 m^v2;  Ec = 1/2 (200) (8)2; Ec = 6400 J

Emecanica = Ec + Ep = 49000 + 6400 = 496400 J