What is point object or a point particle in physics ? - Param Himalaya

Point Object : An object is said to be a point object or a particle if it's size or dimensions ( i.e length , breadth , thickness etc.) are negligible as compared to the distance travelled by it.

Example :

(i) An aeroplane which flies from Delhi to London

(ii) A train moving over long distances ( say hundreds of kilometres).

(iii) A shell fired by a gun.

(iv) Earth moving around the sun .