3.) A mass of m=20kg is at rest and at a height of 12 meters above the ground. The object is released and hits the ground at a final velocity of Vf. Use the conservation of energy to calculate the final velocity of the mass, Vf, the instant before it hits the ground.

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Chapter7: Energy Of A System
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3.) A mass of m=20kg is at rest and at a height of 12 meters above the ground. The object is released and hits
the ground at a final velocity of Vf. Use the conservation of energy to calculate the final velocity of the mass,
Vf, the instant before it hits the ground.
Transcribed Image Text:3.) A mass of m=20kg is at rest and at a height of 12 meters above the ground. The object is released and hits the ground at a final velocity of Vf. Use the conservation of energy to calculate the final velocity of the mass, Vf, the instant before it hits the ground.
Expert Solution
Step 1

Given:

Mass, m = 20kg

Height, h = 12 m

Acceleration due to gravity, g = 9.8 m/s2

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