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Travail 2
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Expression 8: phi equals round left parenthesis, left brace, StartAbsoluteValue, theta Subscript, "F" , Baseline minus theta Subscript, "r" , Baseline , EndAbsoluteValue less than or equal to 180 : StartAbsoluteValue, theta Subscript, "F" , Baseline minus theta Subscript, "r" , Baseline , EndAbsoluteValue , 360 minus StartAbsoluteValue, theta Subscript, "F" , Baseline minus theta Subscript, "r" , Baseline , EndAbsoluteValue , right brace , 1 , right parenthesis
ϕ
=
r
o
u
n
d
θ
F
−
θ
r
≤
1
8
0
:
θ
F
−
θ
r
,
3
6
0
−
θ
F
−
θ
r
,
1
equals
=
45
4
5
8
Travail de la force F (en J)
Travail de la force F (en J)
9
Expression 10: "W" equals round left parenthesis, "F" Delta Subscript, "r" , Baseline cos phi , 1 , right parenthesis
W
=
r
o
u
n
d
F
Δ
r
c
o
s
ϕ
,
1
equals
=
13.6
1
3
.
6
10
Dessin de la boîte
Dessin de la boîte
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11
Dessin de l'angle entre la force et le déplacement
Dessin de l'angle entre la force et le déplacement
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16
Dessin force appliquée
Dessin force appliquée
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23
Dessin du déplacement
Dessin du déplacement
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30
Équation
Équation
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37
40
powered by
powered by
phi
ϕ
phi
ϕ
"W" equals Start\vec "F" undefined times Start\vec Delta "r" undefined equals "F" Delta "r" cosine phi equals ( 3.5 N ) ( 5.5 m ) cosine ( 45 degrees ) equals 13.6 J
W
=
→
F
·
→
Δ
r
=
F
Δ
r
c
o
s
ϕ
=
(
3
.
5
N
)
(
5
.
5
m
)
c
o
s
(
4
5
°
)
=
1
3
.
6
J
Glissez les points vert, rouge et noir pour modifier la position, la force et le déplacement.
"x"
x
"y"
y
"a" squared
a
2
"a" Superscript, "b" , Baseline
a
b
7
7
8
8
9
9
over
÷
functions
(
(
)
)
less than
<
greater than
>
4
4
5
5
6
6
times
×
| "a" |
|
a
|
,
,
less than or equal to
≤
greater than or equal to
≥
1
1
2
2
3
3
negative
−
A B C
StartRoot, , EndRoot
pi
π
0
0
.
.
equals
=
positive
+
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