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Unit 8: Applications of Integration
8.7 Using Integration to Solve Problems Involving Motion
Understanding displacement and total distance traveled:
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Cards (38)
If an object moves 4 m to the right and then 2 m to the left, its displacement is 2 m and the total distance traveled is
6 m
.
True
What is the first step to apply displacement and total distance formulas in motion problems?
Identify the velocity function
Match the quantity with its description:
Displacement ↔️ Change in position
Total Distance Traveled ↔️ Absolute value of displacement
The formula for total distance traveled using integration is
|∫_{t_1}^{t_2} v(t) dt|
What does a positive displacement indicate?
Movement away from initial position
Total distance traveled is the absolute value of the
displacement
What is the formula for displacement in terms of velocity and time?
Δ
x
=
\Delta x =
Δ
x
=
∫
t
1
t
2
v
(
t
)
d
t
\int_{t_{1}}^{t_{2}} v(t) \, dt
∫
t
1
t
2
v
(
t
)
d
t
What is the formula for calculating displacement using integration?
\Delta x = \int_{t_{1}}^{t_{2}} v(t) \, dt</latex>
Match the variable with its meaning and units:
\Delta x ↔️ Displacement in meters
v(t) ↔️ Velocity function in m/s
t_{1} ↔️ Initial time in seconds
t_{2} ↔️ Final time in seconds
What is the formula for calculating total distance traveled using integration?
∣
Δ
x
∣
=
|\Delta x| =
∣Δ
x
∣
=
∣
∫
t
1
t
2
v
(
t
)
d
t
∣
|\int_{t_{1}}^{t_{2}} v(t) \, dt|
∣
∫
t
1
t
2
v
(
t
)
d
t
∣
Displacement can be positive, negative, or
zero
Displacement has both magnitude and direction.
True
If an object moves from x=2 m to x=5 m and back to x=2 m, its displacement is zero.
True
Displacement can be positive, negative, or zero, while
total distance
traveled is always positive.
True
What is the key difference between displacement and total distance traveled?
Direction and sign
Displacement can be positive, negative, or zero, while total distance traveled is always positive.
True
Total distance traveled can be negative.
False
If a particle's velocity is v(t) = 2t</latex> m/s, its displacement between
t
1
=
t_{1} =
t
1
=
1
1
1
s and
t
2
=
t_{2} =
t
2
=
3
3
3
s is 8 meters.
True
What is the key difference between displacement and total distance traveled?
Displacement can be negative
What is the formula for total distance traveled?
|\Delta x| = |\int_{t_{1}}^{t_{2}} v(t) dt|</latex>
What is the formula for displacement using integration?
Δ
x
=
\Delta x =
Δ
x
=
∫
t
1
t
2
v
(
t
)
d
t
\int_{t_{1}}^{t_{2}} v(t) \, dt
∫
t
1
t
2
v
(
t
)
d
t
What is the definition of displacement?
Change in object's position
The formula for displacement using integration is
Δ
x
=
\Delta x =
Δ
x
=
∫
t
1
t
2
v
(
t
)
d
t
\int_{t_{1}}^{t_{2}} v(t) dt
∫
t
1
t
2
v
(
t
)
d
t
Total distance traveled is always a positive value.
True
What is the total length of the path an object has traveled called, regardless of direction?
Total distance traveled
The formula for total distance traveled is the absolute value of the
displacement
Displacement is a
vector
quantity with both magnitude and direction.
How is total distance traveled related to displacement?
Absolute value of displacement
In the formula for displacement using integration,
\Delta x
represents the change in position.
In the formula for total distance traveled using integration, the
absolute
value of the displacement is used.
Displacement is a
vector quantity
that can be positive, negative, or zero.
True
What is the formula for displacement in physics?
Δ
x
=
\Delta x =
Δ
x
=
∫
t
1
t
2
v
(
t
)
d
t
\int_{t_{1}}^{t_{2}} v(t) dt
∫
t
1
t
2
v
(
t
)
d
t
What type of quantity is displacement?
Vector
Total distance traveled is the absolute value of an object's
displacement
What is the key difference between displacement and total distance traveled?
Direction
Steps to calculate displacement and total distance traveled
1️⃣ Identify the velocity function v(t)
2️⃣ Integrate v(t) over the time interval [t₁, t₂] to find Δx
3️⃣ Calculate the absolute value of Δx for total distance traveled
In the displacement formula, Δx is measured in
meters
What is the formula for total distance traveled using integration?
|\Delta x| = |\int_{t_{1}}^{t_{2}} v(t) dt|</latex>