Asked by zz
A ball,500g,thrown upward at 20 m\s reaches an elevation of 15m.how much energy is lost.
Answers
Answered by
Elena
ΔE=KE-PE=mv²/2-mgh=
=0.5(20²/2 - 9.8•15)=26.5 J
=0.5(20²/2 - 9.8•15)=26.5 J
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