1. 15° T₁ W T₂ 10° W A 76-kg person is being pulled away from a burning building as shown in the figure above. Using the two equations found using Newton's Second Law in Part 2, compute the numeric values of the tensions T₁ and T₂. T₁ = N T₂= N Hint: You will have to solve a system of linear equations to compute the tensions.

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Chapter5: Newton's Law Of Motion
Section: Chapter Questions
Problem 23P: While sliding a couch across a floor, Andrea and Jennifer exert forces FA and FJ on the couch....
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L)
O Search
15
%
5
Our goal is to calculate the tensions in the two ropes if the person is momentarily motionless (Part 3).
Set up Newton's 2nd Law in the x and y directions when the system is at rest. What should the
sum of the forces add up to?
W
1. Set-up Newton's 2nd Law is in terms of symbols and notations only. Please do not substitute
any numerical values except for the angles.
ΣF=
ΣF=
Write expressions for ΣF, and ΣF, in terms of T₁, T2, m, g, and the numerical values of the
angles.
For example, you may express the x-component of T, as-T,sin(15°) or T,cos(105°)
2. Take the upward direction to be the +y-direction, and to the right to be the +x-direction.
3. REMEMBER TO ADD THE DEGREE SIGN FOR THE ANGLES AND THE SUBSCRIPTS FOR THE
TENSIONS USING THE MATH EDITOR.
f6
The degree symbol is available in the math type menu by clicking the arrow to the right of the
division sign as shown in the figure below. For example you could enter cos(32°). Use the editor for
adding subscripts to the tensions.
J-
6
D
17 +
&
7
d √ Vo
33
=293075
99+
18
*
(00)
✔=0 (Positive x direction is to the right)
O
T
= 0 (Positive y direction is upwards)
a
19
SAN
x = 2VU.
U%
JOUE
C
144
A Q
f10 DII
f11
112
Transcribed Image Text:? L) O Search 15 % 5 Our goal is to calculate the tensions in the two ropes if the person is momentarily motionless (Part 3). Set up Newton's 2nd Law in the x and y directions when the system is at rest. What should the sum of the forces add up to? W 1. Set-up Newton's 2nd Law is in terms of symbols and notations only. Please do not substitute any numerical values except for the angles. ΣF= ΣF= Write expressions for ΣF, and ΣF, in terms of T₁, T2, m, g, and the numerical values of the angles. For example, you may express the x-component of T, as-T,sin(15°) or T,cos(105°) 2. Take the upward direction to be the +y-direction, and to the right to be the +x-direction. 3. REMEMBER TO ADD THE DEGREE SIGN FOR THE ANGLES AND THE SUBSCRIPTS FOR THE TENSIONS USING THE MATH EDITOR. f6 The degree symbol is available in the math type menu by clicking the arrow to the right of the division sign as shown in the figure below. For example you could enter cos(32°). Use the editor for adding subscripts to the tensions. J- 6 D 17 + & 7 d √ Vo 33 =293075 99+ 18 * (00) ✔=0 (Positive x direction is to the right) O T = 0 (Positive y direction is upwards) a 19 SAN x = 2VU. U% JOUE C 144 A Q f10 DII f11 112
Search
15°
T₁
T₂
J.10°
A 76-kg person is being pulled away from a burning building as shown in the figure above.
Using the two equations found using Newton's Second Law in Part 2, compute the numeric values of
the tensions T₁ and T₂.
T₁=
Submit Answer
✔N
T₂=
✔N
Hint: You will have to solve a system of linear equations to compute the tensions.
99+
Answering the question(s) helps us recommend your next activity.
Transcribed Image Text:Search 15° T₁ T₂ J.10° A 76-kg person is being pulled away from a burning building as shown in the figure above. Using the two equations found using Newton's Second Law in Part 2, compute the numeric values of the tensions T₁ and T₂. T₁= Submit Answer ✔N T₂= ✔N Hint: You will have to solve a system of linear equations to compute the tensions. 99+ Answering the question(s) helps us recommend your next activity.
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