Question

Motion class 9,please give me correct answer​

Answer 1

Answer:

B) ms-1

Explanation:

Velocity is a physical vector quantity; both magnitude and direction are needed to define it. The scalar absolute value (magnitude) of velocity is called speed, being a coherent derived unit whose quantity is measured in the SI (metric system) as metres per second (m/s) or as the SI base unit of (m⋅s−1).

Answer 2

QUESTION :-

The Unit of Velocity is :

(a) ms

(b) $ms^{-1}$

(c) $ms^{-2}$

(d) None of these

ANSWER :-

The SI Unit of Velocity is Meter per Second. This can be represented by the symbol $\bold {ms^{-1}}$ or m/s

This is also the SI Unit of Speed...

∴ Option B is the Right Answer....