H206 Motion in Circle Flashcards
1
Q
Define angular displacement.
A
Angular displacement is the angle swept out by a radius.
2
Q
Define angular velocity.
A
Angular velocity is the rate of change of angular displacement swept out by a radius.
3
Q
What is the formula for angular velocity?
A
Angular velocity = 2 pi/ period of one revolution
4
Q
What is the formula for linear velocity?
A
v = (r)(angular velocity)
5
Q
What is the formulae for centripetal acceleration?
A
a = v^2/r or r(angular velocity)^2
6
Q
What is the formulae for centripetal force?
A
F = mv^2/r or mr(angular velocity)^2
