1 - Circular motion Flashcards
1
Q
Radian
A
One radian is the angle subtended at the centre of a circle by an arc length equal to the circle’s radius.
2
Q
angular displacement
A
The rate of change of angular position of an object as it moves along a curved path
3
Q
Period (circular motion)
A
Time taken by the body complete the circular path once
4
Q
centripetal force
A
Resultant force acting on an object moving in a circle, always directed toward the centre of the circle, perpendicular to the velocity of the object
5
Q
Centripetal acceleration
A
acceleration toward the center of a curved or circular path - by equating newton’s second law (F=ma) and centripetal force (F=mv^2/r)
