+0  
 
0
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avatar+28 

Hi there.

 

Just got my head stuck around this question.

 

 

Thanks in advance for helping out.

 

Bryan

bqrs01  Jun 10, 2018
 #1
avatar+14398 
+3

potential energy is converted to kintic energy

 

mgh = 1/2 mv^2

gh=1/2 v^2

h = 1/2 (1.4)^2 / 9.8 = .1 meter  

THIS h is how far down the bead has fallen.....we must add the .4 position to find the h referenced in the diagram    .1 +.4 = .5 m

ElectricPavlov  Jun 10, 2018

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