When can an object be considered as a point object ? Explain in brief.

When is a moving object considered as a point object ? Give some example.

Mention the condition when on object in motion (a) can be considered point object (b) cab bot considered point object.

In which of the following examples of motion, can the body be considered approximately a point object:

In which of the following examples of motion, can the body be considered approximately a point object:

When can we say that an object is in motion?

Can an object vibrating transversely produce a sound wave ? Explain.

Explain how far is it correct to consider an object as a "point" object.