Question

derivation of circular expression​

Answer 1

Answer:

$\huge{\fbox{\fbox{\bigstar{\mathfrak{\red{Answer}}}}}}$

Explanation:

Deriving the centripetal acceleration formula

1. We can calculate the arc length s as both the distance traveled (distance = rate * time = v Δt) and using the definition of a radian (arc = radius * angle in radians = r Δθ)
2. The angular velocity of the object is thus v / r (in radians per unit of time.) ...
3. Note the passing from sin to cos is via l'Hôpital's rule.

Answer 2

Answer:

A circular definition is one that uses the term(s) being defined as a part of the definition or assumes a prior understanding of the term being defined. There are several kinds of circular definition, and several ways of characterising the term: pragmatic, lexicographic and linguistic.