two wires are tied to the 300g sphere
T1 =
Homework Answers
sin theta = 0.5/1 = 0.5
theta = 30 with the horizantal
r = L*cos30 = 1*cos30 = 0.866 m
along horizantal
Tu*cos30 + Tl*cos30 = m*v^2/r
Tu*cos30 + Tl*cos30 = (0.3*6.8*6.8)/0.866 = 16.01
Tu*cos30 + Tl*cos30 = 16.01
Tu + Tl = 18.48 ..................(1)
along vertical
Tu*sin30 = mg + Tl*sin30
Tu = 2mg+Tl = (2*0.3*9.8)+Ti
Tu - Tl = 5.88 ..............(2)
from 1 &2
Tu = 12.18 N
<-----------answer
Tl = 6.30 N <-----------answer
Label upper wire Tension = T1 and lower wire Tension = T2
Now show and label the X & Y COMPONENTS of T1 & T2
From the correctly drawn components see that the EQUILIBRIUM equations are:
?Fy=0: T2(sin 30
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Two wires are tied to the 3.0kg sphere shown in the figure.
(Figure 1) The sphere revolves in a horizontal circle at constant
speed.
For what speed is the tension the same in both wires?
Express your answer to two significant figures and include the
appropriate units.
What is the tension?
Express your answer to two significant figures and include the
appropriate units.
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(Figure 1) The sphere revolves in a horizontal circle at constant
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For what speed is the tension the same in both wires?
Express your answer to two significant figures and include the
appropriate units.
What is the tension?
Express your answer to two significant figures and include the
appropriate units.
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