Question

Define speed of a particle? according to class 9th ​

Answer 1

$\mathfrak{\large{\underline{\underline{Answer:-}}}}$

Speed:- The distance covered by a particle in a unit time is known as distance.

The formula of distance is given by :-

★ $\boxed{\sf{V = \frac{S}{T} }}$

Some extra information about speed:-

• It is denoted by V.
• It is a scalar quantity.
• It can never be in negative.
• The slope distance time graph give the speed.

There is two types of speed :-

1. Uniform speed:- If the body covers equal distance in equal interval of time.
2. Non-Uniform speed :- If the body cover in equal distance in equal interval of time.

Ex:- Speed of a car in crowded road.

Answer 2

Answer:

Speed:- The distance covered by a particle in a unit time is known as distance.

Explanation:

The formula of distance is given by :-

★ \boxed{\sf{V = \frac{S}{T} }}

V=

T

S

Some extra information about speed:-

It is denoted by V.

It is a scalar quantity.

It can never be in negative.

The slope distance time graph give the speed.