## Question

What does vo mean in physics?

### Answer

The **symbol vo is correctly written as V _{0} or v_{0}**. We write the zero sign as a subscript to v. In any physics formula,

**v**represents an object’s initial or original speed in a specific direction. When the speed of an object is in a specific direction, we call it velocity.

_{0}The velocity of an object is defined as the displacement over time. We can write the definition of displacement in a mathematical form as

v = s / t

Where v = velocity

s = displacement [Note: Displacement is the measure of separation between two points in a specified direction. It’s different from a distance]

t = time taken

## Formulae Where v_{0} is Involved

a = (v – v_{0}) / t [a = acceleration, t = time, v = final velocity, and v_{0} = initial velocity]

v = v_{0}t + at

s = v_{0}t + (1/2)at^{2}

v^{2} = v_{0}^{2} + 2as

The zero sign is to help you differentiate between two similar velocities, where one is the velocity of the object when it starts moving (v_{0}). While the other is the final velocity of the object when it stops moving (v).

You can change it to v_{1} (initial velocity for v_{0}) and v_{2} (final velocity for v) as long as it will help you understand the problem you are trying to solve. In some books, you will see u instead of v_{0} as the initial velocity of an object.

**Therefore, the correct answer to the question “what does vo mean in physics?” is an object’s initial or original speed (velocity) in a specific direction**

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