5. A pot plant falls off the balcony of an apartment. The balcony is 20 m above the ground and the pot plant has a mass of 2 kg. After falling a distance of 2 m from the balcony, the pot plant has a velocity of 6,26 m·s-1. Ignore the effect of air resistance. * Your answer

5. A pot plant falls off the balcony of an apartment. The balcony is 20 m above the ground and the pot plant has a mass of 2 kg. After falling a distance of 2 m from the balcony, the pot plant has a velocity of 6,26 m·s-1. Ignore the effect of air resistance. * Your answer

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.78P: The figure shows a steel bar being processed by a rolling mill. Given that P=80kN and r =0.016,...

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Question

5. A pot plant falls off the balcony of an
apartment. The balcony is 20 m above the
ground and the pot plant has a mass of 2
kg. After falling a distance of 2 m from the
balcony, the pot plant has a velocity of 6,26
m-s-1. Ignore the effect of air resistance. *
5.1 Calculate the gravitational potential energy of the pot plant before it begins to fall.
5.2 Calculate the total mechanical energy of the pot plant after it has fallen two meters.
5.3 Is this a closed system? Explain your answer.
5.4 Calculate the speed with which the pot plant hits the ground.

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