a) m = 70kg Ec = mv² /2 v = ? daca omul e in repaus V = 0 Ec= 0
b) Ep = mgh = 70·9,8·12000 = 8232000j = 8232kj ..... nu cred ca exista o astfel de persoana , atat de energica !!!
c) v = 1m/s
Ec = mv² /2 = 35 J Ep = mgh = 70·9,8·6000 = 4116000j
Et = Ec + Ep = 4116035J