Question

qual o costante elastica do corpo que e deformado am 30cm e adquire epe=2.7 j

Answer 1

30cm=0,3m

Epe=(kx^2)/2
2,7=(k.0,3^2)/2
2,7=(0,09k)/2
2,7.2=0,09k
5,4=0,09k
k=5,4/0,09
k=60N/m