Asked by monea
A 3 kg objects falls from a height of 10 m to the ground. the work done by air resistance is 20 J. What is the kinetic energy of the object as it hits the ground?
Answers
Answered by
bobpursley
KEfinal+frictoinwork=INTitialPE
KEfinal=mgh-20
KEfinal=mgh-20
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