Asked by POTENTIAL & KINETIC ENERGY PRACTICE

Martha drops a 1 kg rock off the top of Black Oak Canyon which is 100m deep. What is the KE of the rock the instant
before it hits bottom? Hint: Conservation of energy states that PE = KE
Answered by bobpursley
KE=mgh=1*g*100=9800joules
Answered by Caleb
@bobpursley:
9.8*100 is actually 980, not 9800
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