circular motion definitions Flashcards
1
Q
define the radian
A
one radian is the angel subtended at the centre of a circle by an arc of length equal to the radius of the circle
2
Q
define centripetal force
A
the net force acting on an object describing a circular path. It is always directed towards the centre of the circle
3
Q
define centripetal acceleration
A
The acceleration towards the centre of the circle that holds the object in elliptical orbit a=v²/r
4
Q
define the period
A
the time taken for one complete oscillation
