Answers

初期状態のEp=1/2×20×0.10²
Ep=0.10[J]
さらに0.40[m]伸ばした状態の
Ep'=1/2×20×0.50²=2.5[J]
ΔU=Ep'ーEp=2.5ー0.10=2.4[J]

Post A Comment
Were you able to resolve your confusion?

Users viewing this question
are also looking at these questions 😉