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3 years ago

PLEASE I NEED HELP

Physics

1 answer:

777dan777 [17]3 years ago

5 0

Answer:

K= 95.4 J

Explanation:

For this exercise we must use the conservation of mechanical energy.

We set a reference system on the floor.

Starting point. Higher

Em₀ = U = m g h

Final point. Just before taking the floor

Em_f = K = ½ m v²

energy is conserved because there is no friction

Em₀ = Em_f

mg h = K

The height is

h = y -y₀

h = 0- y₀

let's calculate

K = 3.23 (-9.81) (-3.01)

K= 95.4 J

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<h3>Answer :</h3>

First of all, See the attachment for better understanding $.$

_________________________________

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