Question

Why is Speed Scalar and Velocity a vector quantity ? How Acceleration is related to Velocity ?​

Answer 1

Answer:

speed has only magnitude

velocity has both magnitude and direction

acceleration=rate of change of velocity

(v1+v2)/time=acceleration

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Answer 2

Answer:

Speed is a scalar quantity – it is the rate of change in the distance travelled by an object, while velocity is a vector quantity – it is the speed of an object in a particular direction.

Velocity -- Velocity is a physical vector quantity; both magnitude and direction are needed to define it. there is a change in speed, direction or both, then the object has a changing velocity and is said to be undergoing an acceleration.

Acceleration is defined to be the rate of change of the velocity.

Explanation:

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