Introduction Have you ever wondered, why does anything thrown up fall down ? Why does not the moon fall to the earth? Why does not the earth fly o…
Introduction We come across many objects that follow rotational movements. A ceiling fan or a potter’s wheel, these rotating objects are a system …
Introduction In the previous chapter, we have learnt about " Laws of Motion ". In this chapter, we shall study notion of work and energy…
Introduction When we look around us, we find the planets moving around the sun in orderly manner, movement of machinery parts in a factory, phas…