Question

An 80 kg object is dropped from rest from a height of 25 meters above the...

An 80 kg object is dropped from rest from a height of 25 meters above the ground. Use the concept of energy conservation to find its speed when it is 15 meters above the ground.

a.28 m/s

b.6.4 m/s

c.14 m/s

d.9.9 m/s

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Answer #1

Energy - MOLs q objet, m=song Initial height a objut, hi 25m final heignt q object, ht= 15m Initial lpeed q object Vizom Le.

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