Question

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Answer 1

Respuesta:

56 Joules

Explicación:

Datos:

m = 2 kg

k = 200 N/m

xo = 1 m

xf = 60 cm = 0.6 m

E Mec=?

Ec = 0.5 mv²

Ec= 0.5 (2 kg ) ( 4 m/s)²

Ec= 16 Joules

E elástica= 0.5 k x²

E elástica= 0.5 x 200 N/m (1 - 0.6 m)²

E elástica= 40 J

E Meca = Ec + E elástica = 16 J + 40 J = 56 Joules