- #1

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Boy can physics be confusing :(

change of velocity - delta (V)

Short time period - delta (T)

Change of angle - delta (alpha)

Velocity - V

Centripetal acceleration - a

This I understand

V = radius * delta (angle) / delta (time)

In circular motion speed velocity only changes direction but not size , but

still I don't quite understand how

delta (V) = V * delta (alpha)

represents (directional) change of velocity , and thus also don't understand

a = delta (V) / delta (T)

thank you