Question

Solve the puzzle
The motion of moon around the earth
The motion of sling of farmer
The motion of soldiers in a parade _ linear

Answer 1

The motion of moon around the earth is periodic
The motion of the sling of framer is circular

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Answer 2

The Answer for the Puzzle is :

The motion of moon around the earth
The motion of sling of farmer       ------------- Uniform Circular Motion.

An object is said to be in Uniform circular motion if it covers equal distance in equal intervals of time.

In uniform circular motion  , Speed is constant but velocity changes ta every point .

The motion of soldiers in a parade -- Linear 
Soldiers motion will be in straight line along the road . Hence the type of motion would be Rectilinear motion.