other derivatives Flashcards
1
Q
when velocity is negative, the particle is
A
moving to the left or backwards
2
Q
when velocity is positive, the particle is
A
moving to the right or forwards
3
Q
when velocity and acceleration have the same signs, the speed …. when they have opposite signs, the speed …
A
increases; decreases
4
Q
the particle momentarily stops and changes direction when
A
velocity=0 and acceleration doesn’t
