Uniform circular motion Flashcards
1
Q
what is a radian
A
the angel subtended at the centre of a circle by an arc equal length to the radius
2
Q
angle θ
A
arc / radius = S/R = 2πr/r
3
Q
definition of angular velocity
A
angel in radians swept out by the radius in one second
4
Q
what is the period T
A
the time taken to complete one revolution
5
Q
what is the frequency F
A
the number of revolutions per second
6
Q
centripetal acceleration (a)
A
mrω² = mv²/r
7
Q
angular velocity
A
2πf=θ/T =
