Why is uniform circular motion an accelerated motion?

 Q: Why is uniform circular motion an accelerated motion?

A: The velocity of  Uniform Circular motion changes continuously due to its changing direction. As there is change in velocity, the motion is accelerated motion.

DOOR HANDLES

 Question: Why are door handles fitted at the edge of the door ?

Answer: Door handles are fitted at the edge to increase  the perpendicular distance of the force from the axis of rotation so that the minimum force can be applied to achieve the given torque.