when does uniform circular motion occur
when an object travel in a circle at constant speed
conditions for unifrm circular motion
resultant force must be perpendicular to motion, directed along radius towards centre, constant in magnitude but always changing direction
acceleration is also perpendicular to motion, directed along radius towards centre, constant in magnitude but always changing direction
what is net work done in uniform circular motion and why?
zero. resultant force always perpendicular to velocity of object, thus no net work done
why does speed vary in non-uniform circular motion
energy is being exchanged between gpe and ke
why is water able to remain in a pail, despite the pail being upside down as the pail is whirled in a vertical circular path
the pail is being swung at a sufficient linear velocity such that centripetal force is larger than or equal to the weight of water
