1
Explanation
There
is a resultant (or net or unbalanced) force
Plus
any 3 of following:-
Direction
of motion is changing
Velocity
is changing
Velocity
change implies acceleration
Force
produces acceleration by F
= ma
(or N2)
Force
(or acceleration) is towards centre / there is a centripetal
force
(or acceleration) / no force (or acceleration) parallel to
motion
No
work done, so speed is constant Max
