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Physics Problem: String Tension

The document finds the tension in the string for a three ball Christmas decoration where each ball has a mass of 0.25kg. It sets up the force equation for each ball, substitutes the known values, and solves to find that the tension in the string is 0.75N for the top ball, 0.50N for the middle ball, and 0.25N for the bottom ball.

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Dea Sabelle Castro
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131 views1 page

Physics Problem: String Tension

The document finds the tension in the string for a three ball Christmas decoration where each ball has a mass of 0.25kg. It sets up the force equation for each ball, substitutes the known values, and solves to find that the tension in the string is 0.75N for the top ball, 0.50N for the middle ball, and 0.25N for the bottom ball.

Uploaded by

Dea Sabelle Castro
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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3. A Christmas decoration consists of three identical balls, each with a mass of 0.25 kg.

It was
hanged form a ceiling as shown. Find the tension in the portion of the string supporting each
ball. Neglect the mass of the string.
w1  0.25 Kg
Given: w2  0.25 Kg
w3  0.25 Kg
Unknown: tension of string in each ball

Equation:
F net
0
  
 T1  T2  T3  w1  0

Substitute:

(eq1)T1  0.25N  0.25N  0.25N  0



T1  0.75 N

(eq 2)T2  T3  w2  0
T2  0.25 N  0.25 N  0

T2  0.50 N

(eq3)T3  w3  0
T3  0.25 N  0


T3  0.25N

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