Particle Dynamics Flashcards
1
Q
How do centripedal acceleration (Aϲ) arise?
A
from the velocity always being tangent to the circle, creating an acceleration directed radially inwards.
2
Q
What is the equation for centripetal acceleration?
A
Ac = v²/r
3
Q
What is the equation for centripetal force?
A
Fc = m x Ac = mv²/r
4
Q
What is the equation for maximal frictional force?
A
Fmax = μN
N is normal force to the surface on which the object rests
μ is the friction coefficient
5
Q
What is static friction and what is the equation for it?
A
Static friction is when the object is not moving
The equation is μs = tan a
where a is the angle at which the object first moves to move on an inclined plane
6
Q
What is kinetic friction and how do it exist?
A
Kinetic friction exists when surfaces are in motion and μk < μs
