Velocity

The video tutorial explains the concept of velocity, distinguishing it from speed. Velocity is a vector quantity, meaning it includes both magnitude and direction, while speed is a scalar quantity, only indicating how fast an object is moving. The tutorial further explores how velocity can change, introducing the concept of acceleration, which occurs when an object speeds up, slows down, or changes direction. The effects of acceleration on velocity are discussed, with examples illustrating these concepts. The video concludes by encouraging viewers to consider how velocity can be controlled in practical scenarios, such as a tennis serve.

Explain the concept of acceleration in relation to velocity.

How can a tennis player control the velocity of his serve?