Motion Flashcards
1
Q
How is Position represented?
A
x(t) or sometimes s(t)
2
Q
How is Velocity represented?
A
v(t), which is x’(t)
3
Q
How is Acceleration represented?
A
a(t), which is x”(t) or v’(t)
4
Q
What is Speed in terms of velocity?
A
The absolute value of velocity.
5
Q
When the velocity is negative, the particle is moving…
A
to the left
6
Q
When the velocity is positive, the particle is moving…
A
to the right
7
Q
When the velocity and acceleration of the particle have the same signs…
A
The particle’s speed is increasing.
8
Q
When the velocity and acceleration of the particle have the opposite signs…
A
The particle’s speed is decreasing (or slowing down).
9
Q
When the velocity is zero and the acceleration is not zero, the particle is…
A
momentarily stopped and changing direction.
