trabajo de sistema conservativo 4

 A                                         h:2m    p:50kgf                    P=m.g.h
ECi: 0j                                                                              p=50.9,8.2
EPi: 980j                                                                          p=980j
EMi:980j

B
EC:980j
EP:0j
EM:980j

C
ECf:0j
EPf:980j
EMf:980j